high confidence phishing office 365

Our administrators can specify the users and key domains that are likely to get impersonated and manage the policy action like junk the mail or quarantine it. Sharing best practices for building any app with .NET. Because of the proprietary information that executives have access to, they are often targets in spear-phishing attacks known as whaling. I have followed all the steps to whitelist the domains and the IP addresses, but still, the emails are being sent to quarantine. You can prevent legitimate spoofed mail from being blocked by setting upspoof filtersin the Security & Compliance Center. Users are seeing that legitimate email is being quarantined within the Exchange Online service. Windows Defender ATP can quickly quarantine that email. Adjusting the confidence threshold is an effective way to provide an extra level of protection. In most cases, these attacks are basic scams that target people and seek personal information to compromise the users identity or financial information. By integrating technology platforms in our security stack, we have more detail about what happened before, during, and after an attack, and we can be agile in our efforts to protect our environment. It gives a better understanding about which people and/or groups might need more education or more rigorous protection policies. Office 365 spam filter provides high security for enterprises. It also features URL detonation, attachment detonation and blocking, user intelligence, reputation scans, heuristic clustering, and machine learning models that constantly improve phishing identification. @stonefr33I was able to fix the problem. Figure 2. It wouldn't be a big problem if I could set the rules so that such emails would still end up in junk folder, but apparently its no longer possible and the only option is the quarantine. If the sender is not permitted to do so, and the email fails the SPF check, DMARC helps us decide what to do with the messagewhether it should be quarantined in the junk or spam folder, or rejected. We can also use features like Content Search in Office 365 Security & Compliance Center to see the body of malicious email and get full context for further analysis. The General page will show the default spam filtering policy. Use the Microsoft 365 Defender portal to view anti-spam policies Use the Microsoft 365 Defender portal to modify anti-spam policies Use the Microsoft 365 Defender portal to remove custom anti-spam policies Use Exchange Online PowerShell or standalone EOP PowerShell to configure anti-spam policies How do you know these procedures worked? I have tested this from multiple emails on this tenant and they all have the same result. What the SCL means and the default actions that are taken on messages are described in the following table. EOP takes action on the message based on the SCL. Start time: Monday, May 10, 2021, 7:26 AM (6:26 AM UTC) For more information, see Use mail flow rules to set the spam confidence level (SCL) in messages. Emails will then get sent to Junk Email folder instead of being quarantined. This breadth and depth of security signals and data is used to power rich machine learning, AI algorithms, and heuristic algorithms that fuel the creation of new detection technologies. Today, however, phishing cyberattacks come from a criminal industry that includes companies, crime organizations, and even nation-states. Absolutely useless, and now I have to create a mail flow rule so these messages are moved to junk. All attachments without a known signature are routed to a virtual detonation environment, where Office 365 ATP applies behavioral analysis and machine learning techniques to detect malicious activity. Change If Message Is Detected As Spoof field to Move Message To Recipients Junk Email Folders. Applies to Exchange Online Protection Microsoft Defender for Office 365 plan 1 and plan 2 Microsoft 365 Defender In all Microsoft 365 organizations, Exchange Online Protection (EOP) scans all incoming messages for spam, malware, and other threats. Ok I see now, thanks. Might take a wee while for the policy to take effect. Spam filtering (content filtering): EOP uses the spam filtering verdicts Spam, High confidence spam, Bulk email, Phishing email and High confidence phishing email to classify messages. Cybersecurity is a critical issue at Microsoft, as it is for organizations everywhere. We can see who received the mail, who reported it, and who clicked a link or attachment. Similar to the SCL, the bulk complaint level (BCL) identifies bad bulk email (also known as gray mail). First, open the Exchange Admin Center (EAC) and navigate to Protection and then Spam filter. Using Threat Explorer, at Microsoft Digital we can search for and purge emails on our ownwithout having to rely on other teams. March 2022 check before: 2022-04-05 Product: Defender, Defender for Office 365, Microsoft 365 Defender, Microsoft Defender for Office 365 Platform: US Instances, Web, World . Even emails that aren't even close to being a phishing? At Microsoft Digital, we have improved awareness, gained more insight, and increased productivity to address phishing. Using Threat Explorer, included in Threat Intelligence, we can view and analyze information about malware inside and outside our environment, including breach information. Sender authentication protection helps flag spoofed messages before they reach the users inbox. In addition to explicit authentication checks, Office 365 also uses an additional anti-spoofing layer which implicitly infers authentication for mail traffic for domains that have not fully configured SPF, DKIM, DMARC, by learning from historical traffic patterns from those domains. After you enable multifactor authentication on your tenant, your users can refer toSet up 2-step verification for Office 365to set up their second sign-in method. @josephmiller1256Have you run the message headers through a message header analyser? A higher SCL indicates a message is more likely to be spam. With telemetry from EOP, Threat Explorer in Office 365 Threat Intelligence, and antivirus detection on malicious files, Microsoft Digital has more visibility of phishing attacks in our environment. The layers of protection in Exchange Online Protection and Advanced Threat Protection in Office 365 offer threat intelligence and cross-platform integration, protect against phishing threats, and safeguard data and intellectual property. For more information about actions you can take on messages based on the spam filtering verdict, see Configure anti-spam policies in EOP. from the drop-down. Legitimate emails are being quarantined, and straight up phishing emails that ask you to log in with your password outside office.com are completely fine. ATP Safe Attachments policies can be applied to specific people, groups, or your entire domain. Outlook add-in\plugins In case that we suspect the SPAM issue caused by Outlook add-in\plug-in, we can disable this "add-ins" by running Outlook in safe mode. You could control the email filter by configuring the following filtering: https://go.microsoft.com/fwlink/?linkid=2150078. Will no longer. You can configure the actions to take based on these verdicts, and you can configure what users are allowed to do to quarantined messages and whether user . So even messages that Office 365 marks with low to medium confidence, the phishing threshold can be adjusted so that the email is marked as high-confidence phishing. This section illustrates how the layers of protection work when applied to some of the common phishing scenarios that we see in our environment. DKIM adds a digital signature to all outbound mail from within an organization. Log in to your mail server Admin portal. These emails typically go after consumer account credentials for things like peer-to-peer payment systems, social media accounts, or even e-commerce accounts. it feel similar to this: MO255463 https://mspoweruser.com/mo255463/, Maybe i'm mad, maybe i'm not but something feels wrong on the MS side. Threat Intelligence works with other Office 365 security features, like EOP and ATP, so at Microsoft Digital we can see a wealth of information, including the top-targeted people and roles, the frequency and scope of an attack, and any available security recommendations. From Threat Explorer we can: At Microsoft Digital, we receive reports of phishing from the helpdesk and through the Report Messageadd-in for Outlook. Sometimes, Office 365 does not have enough historical information to determine whether a spoof is legitimate or malicious. Employees are protected from malicious emails continuously. Knowing what people or groups are receiving more phishing attacks and those who appear more vulnerable to risks, based on their computer use behavior, will help you refine policies and thresholds that can help reduce risk. As illustrated below, users will soon be able to hover over an embedded link in the body of an email to inspect its URL. EOP provides advanced security and reliability to help protect information and eliminate known threats before they reach the corporate firewall. since no changes were made on our part, and both clients had it start on the 28th of june, i was just wondering if we are really unlucky, or if ms made some backend changes that messed things up. To round out your protection, Disable SMTP-based login into Office 365 accounts. Exchange administrators and security analysts in Microsoft Digital are saving time and responding faster to phishing at Microsoft. New to Microsoft 365? Connect to Exchange Online PowerShell Start Windows PowerShell as administrator. Additionally, Office 365 ATP offers Safe links time-of-click protection. Hovering over a Safe Links-protected URL. However, the other available impersonation protection features and advanced settings are not configured or enabled in the default policy. Microsoft Defender for Office 365 plan 1 and plan 2 Microsoft 365 Defender In Microsoft 365 organizations with mailboxes in Exchange Online or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes, inbound messages go through spam filtering in EOP and are assigned a spam score. Install the new junk mailreporting add-in, Report Message, to report phishing emails that are missed. Office 365 uses Azure AD for account logins. The one that is on its own is the one having problems. I finally might have the budget for next year to refresh my servers.I'm undecided if I should stick with the traditional HPE 2062 MSA array (Dual Controller) with 15k SAS drives or move to a Nimble HF appliance. If an account is logged into from another geographic region without enough time for the account holder to travel, or if there are log-ins from two locations at once, machine learning models will detect it and our security analysts will investigate to find out if the user has been compromised. An emails digital envelope contains information that Office 365 EOP authentication scans to determine if a sender is who they claim to be. The scans look at the Sender Policy Framework (SPF) to authenticate mail senders, the DomainKeys Identified Mail (DKIM) signature to determine if it originates from the domain, and the Domain Message Authentication Reporting & Conformance (DMARC) record associated with the senders domain. Triage and investigate user-submitted emails that bypassed EOP and ATP. We are having the same issue and it is a known error in the admin portal. Office 365 now supports disabling SMTP-based login for an organization. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS SUMMARY. Safety tips can be used to prompt people when Office 365 detects suspicious or phishing email. SPF also checks if a sender is permitted to send on behalf of a domain. Gain rich reporting and URL tracking capabilities as well as insight into who is being targeted in your organization and the category of attacks you are facing. To do this, we navigate to the Exchange Online Admin Center, then click in protection and then content filter. Information about the mail and the attachment are used to inform reputation scanning signals and our machine learning models. I modify the subject line for my org and utilize 3rd party filtering to do the quarantining. This can happen when a new sender starts sending email as someone else without the proper SPF, DKIM, or DMARC configuration, or if the volume of email is too small to generate a positive reputation. Failure to whitelist us properly may cause our emails to be blocked or filtered into your Spam folder. This document is for informational purposes only. AI and machine learning continue to improve, along with detection capabilities. Spam filtering determined the message was not spam. I have added the three URLs above to the tenant allow list and safe sender link exclusions. Safe Attachments support the ability to check files and files behind links. In Microsoft 365 organizations with mailboxes in Exchange Online or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes, inbound messages go through spam filtering in EOP and are assigned a spam score. Attack Simulator is a powerful tool to test peoples response to common phishing threats. With those reports, you can quickly investigate the scope of an attack and take action. ZAP continuously monitors for new spam, malicious attachments, or phishing URLs, and will move an email to the junk folder if it is maliciouseven if it initially made it through the email protection stack. Note: For more information about using multifactor authentication in Office 365, seeSet up multifactor authentication for Office 365 users. Office/Microsoft 365 uses EOP to process the incoming emails to When you select On from the dropdown, a box appears, and you can add the mailing language that you consider as spam. These simulations help teach people how to handle an attack and give admins a better understanding of who is more susceptible to phishing. Hi all, I and my team are trying to carry out the Sophos Phish Threat V2.Our environment is Microsoft office 365 cloud-only. Scope of impact: Impact is specific to users who are served through the affected infrastructure. It complements the security features of EOP to provide better protection against zero-day, advanced, and targeted phishing campaigns. These attacks are designed to gain access to the organization's credentials and then to use them to laterally compromise the organization and gain further access to corporate data. If the recipient assumes that the mail came from a real domain, they might end up clicking on a malicious link or divulging private information to the attacker. Some phishing attempts are more difficult to discern because they use visual tricks to make email look like it is from someone you know or from a partner or service provider you work with. To learn more about configuring impersonation detection in the new anti-phishing policy, seeSet up Office 365 ATP anti-phishing policies. When a sender spoofs an email address, the message appears to be sent from a domain but originates from an unauthorized source. Click save. Bryce (IBM) about building a "Giant Brain," which they eventually did (Read more HERE.) Office 365 ATP further protects mailboxes against new, sophisticated attacks by expanding protections against unsafe attachments and malicious links. Apr 01 2022 Set-HostedContentFilterPolicy cmdlet in Exchange Online PowerShell to set custom action for phishing e-mails. To learn more, seeSet up ATP safe attachmentspolicies in Office 365. Adjust confidence thresholds for anti-phishing machine learning models. The default anti-phishing policy in Defender for Office 365 provides spoof protection and mailbox intelligence for all recipients. We are in a unique position to help influence the direction of Microsoft products, based on our experience. I run the IT for three businesses. Every month, Microsoft combines intelligence from 400 billion emails analyzed by Office 365, over 1 billion Windows devices, and 450 billion user authentications from Azure Active Directory (Azure AD), as well as signals from hundreds of other services and properties. Microsoft has heavily invested in sophisticated anti-phishing technologies for many years to help protect our customers and our employees from constantly evolving, increasingly sophisticated, and often targeted phishing campaigns. Root cause: Legitimate URLs were incorrectly listed within our Anti-Spam detection rules, resulting in impact. Office 365Exchange Online Protection(EOP) and Office 365Advanced Threat Protection(ATP) work in near real-time to protect against phishing threats and safeguard data and intellectual property. Does anyone know if there are any free training anywhere ? If Office 365 doesnt block the mail based on any of the other scans, Safe Links will open and analyze the link and site content, within a virtual detonation environment, to check for the presence of a lure before continuing to the website. These 'missing' emails are being sent to quarantine labelled as "High Confidence Phish". You will have better visibility into who is getting phished. Go to the Run menu and use the following command: Outlook \ safe 5. For more information, see. Use these reports to update the AV signatures in your machine learning models. Configure and enforce Domain Authentication. To help address the variety of threats, Office 365 EOP, Office 365 ATP, Cloud Application Security, and Office 365 Threat Intelligence work together to offer layered protection with time of delivery, time of click, and post-delivery protection. For example, the message is from a safe sender, was sent to a safe recipient, or is from an email source server on the IP Allow List. The new Office 365 ATP anti-phishing policy allows us to configure both user impersonation and domain impersonation detection settings. We are now extending Secure by Default to cover high confidence phishing messages for the remaining legacy override type, Exchange mail flow rules (also known as transport rule or ETRs). Threat Explorer makes it easier for us to spot trends when a phishing email is part of a targeted campaign against a specific user or role. At the moment of writing, the latest ORCA version is 1.9.11. Emails being marked as phishing by office, Re: Emails being marked as phishing by office. Your daily dose of tech news, in brief. Since many phishing emails come from first-time senders, Microsoft Digital can refine policies for mail delivery based on our level of confidence and the strength of relationships. Search for indicators of current and emerging email threats across our environment to determine impact and identify areas that require response. With Office 365, we can quickly respond to breaches, mitigate their impacts, and play a role in helping improve our detection strategies to prevent future attacks. Now we can search for malicious email, delete malicious attachments from mail, and/or move phishing email to the Junk folder. Better threat intelligence and cross-platform integration enhances individual services and makes it easier than ever for IT security pros to protect their people and companies against cybersecurity threats. If your organization has just begun to use Office 365 EOP and Office 365 ATP to protect from phishing, here are some things to consider, based on our experience at Microsoft Digital. This may include some false positives from time to time so you are advised to configure an action that allows the user to check and recover these messages if required. Current status: We're continuing with delisting the legitimate URLs from our anti-spam detection. After trying to add it to the white-list, this message will come up: "Because Microsoft wants to keep our customers secure by default, allowed senders and domains are not applied for malware or high confidence phishing." Spice (8)Reply (2) flagReport Mosin2-5 sonora New contributor Enter to win a BMC Bluetooth Speakers & Meta Quest 2 Contest ends Use Attack Simulator to help educate people. The attacker relies on visual tricks in the display name or the domain name of the senders email address to make it look like someone you know or like a familiar organizations domain. Mar 12 2020 If no malicious activity is detected, the attachment is released for delivery. ZAP continuously monitors email and will move a malicious message to the junk folder even after it has been delivered. For more information, seeLearn more about spoof intelligence. When phishing messages include an attachment, Office 365 will either block the message or move the attachment to a virtual detonation environment. If you use a mail flow rule to set the SCL, the values 5 or 6 trigger the spam filtering action for Spam, and the values 7, 8, or 9 trigger the spam filtering action for High confidence spam. It might seem easy and safe to deliver possible false positives (not high confidence results) to the users junk folder, so those messages are available immediately. Attack Simulator is a new feature offered in Office 365 Threat Intelligence. Shared signals across Office 365, Windows, Azure, the Microsoft Intelligent Security Graph and first- and third-party antivirus (AV) engines make Microsoft uniquely positioned to protect against phishing attacks. IT organizations that support everything from small businesses to global enterprises, including Microsoft Digital, rely on Office 365 mail services. Phishing attacks are designed to trick people into sharing credentials or personal financial information. Working backward from the reports we receive, we use Threat Explorer and other security and compliance views to analyze the message, investigate the scope of the attack, and collect details about senders, attachments, and links. Either edit an existing policy, including the default policy, or click on the New + icon to create a custom policy. It may be that this tenant/sending domain has a misaligned SPF, DKIM or DMARC record, Microsoft Remote Connectivity Analyzer > Message Analyzer. This topic has been locked by an administrator and is no longer open for commenting. I understand that we can add a rule to allow emails from this tenant to come through but that is only a band-aid fix to the problem as if we need to send an email to someone who has these types of filters or another company using 365, we have no way to ask them to white list us or accept our emails. With ZAP, Office 365 can help ensure that if a malicious email makes it through the pre-delivery scan and is later identified as phishing, it will be removed. Comprised credentials can do more than send mailat Microsoft Digital, we have implemented Cloud Application Security (CAS) to help manage and limit cloud app access based on conditions and session context, including user identity, device, and location. Machine learning and AI constantly improve the way Office 365 detects phishing emails. These campaigns target specific organizations, typically using a message that spoofs their IT organization or a popular SaaS app that a company runs their workflows on. We also receive alerts in our security information and event management (SIEM) system. To investigate phishing emails before Office 365, we relied on employees to forward suspicious email to us. past few days we have noticed on a couple of 365 tenants that swaves of emails land up in the "high confidence phish" quarantine filter either inbound to them, or in the the filters of people they email. It can be difficult to detect a phishing or malicious email from a compromised account. How this will affect your organization After the last phase of Secure by Default is enabled in August for ETRs, Defender for Office 365: Will no longer deliver messages with a high confidence phish verdict, regardless of any explicit ETRs. It gets it wrong - a LOT. At Microsoft Digital, we assume that a small percentage of phishing attacks may get through. A higher BCL indicates a bulk mail message is more likely to generate complaints (and is therefore more likely to be spam). It will not have signs of spoofing or impersonation, and Office 365 might not immediately flag it unless it includes a link or an attachment that has a phishing or malware signature. Starting January 6, 2020 we will enable the policy. The new Office 365 ATP anti-phishing policy allows us to configure both user impersonation and domain impersonation detection settings. You can use mail flow rules (also known as transport rules) to stamp the SCL on messages. Your employees, like many of ours, probably use a combination of the same password and email address which can be risky, especially when they access resources outside of your organization. Office 365 allows you to tune the aggressiveness of the verdicts that machine learning models deliver. Every Defender for Office 365 organization has a built-in anti-phishing policy named Office 365 AntiPhish Default that has these properties: The policy is applied to all recipients in the organization, even though there's no anti-phish rule (recipient filters) associated with the policy. Spam Filtering - Sign Up EMAIL SECURITY SERVICES PLANS AND PRICING SPAM FILTERING The Microsoft Exchange Online Protection (EOP) enables the Office 365 spam filter automatically on all types of e-mails, i.e., inbound as well as outbound. Check and adjust the policy, and see if there is any improvement.) Find out more about the Microsoft MVP Award Program. Unsubscribe from a mailing list It could take as long as eight days to investigate an attackand often, we still would not have the full picture. Increase spam score and Mark as spam: Part of the Advanced Spam Filter (ASF) settings, this option is turned off by default. Discover free video courses for Microsoft 365 admins and IT pros, brought to you by LinkedIn Learning. Office 365 does this both for the receiving organization when someone tries to spoof their own domain, and is in the process of rolling out similar checks for all external-sending domains. Phishing attack spectrum and lures. URLs listed as malicious in Office 365 reputation scans will be marked as spam and will be blocked when the user clicks on them. The new secure-by-default stance means that any existing mail rule overrides you've put in place will be ignored. What's the difference between junk email and bulk email? To give you an example, I have ten emails in the quarantine currently, and all ten are legitimate and incorrectly categorized. In 2016, theAnti-phishing Working Group(APWG), which Microsoft is a member of, saw more than 255,000 unique phishing campaigns with attacks on over 600 brands. Cybersecurity is a critical issue at Microsoft and other companies. FYI, you can use the While the visible link may look legitimate, the embedded link in the mail can go to a duplicated site or to a sign-in page that intends to capture their user name and password. Then under Actions click Edit Actions. It required a lot of manual investigation to determine the nature and scope of the attack. Increase insight with phishing reports and URL Threat Explorer. Key Points Timing: We will begin rolling out Secure by Default for ETRs starting at the beginning of August and complete rollout by early September. 4. Our administrators can specify the users and key domains that are likely to get impersonated and manage the policy action like junk the mail or quarantine it. Legitimate O/M365 email being pulled as high-confidence phishing. For more information, see Configure anti-spam policies in EOP, Bulk complaint level (BCL) in EOP), and What's the difference between junk email and bulk email?. To learn more about creating Safe Links policies, seeSet up Office 365 ATP Safe Links policies. As communicated in MC193076 we added High confidence phishing email to the spam filter policy. Broad phishingcasts a wide net. Gather details on active phishing attacks such as sender, recipient, source IP address, file hashes, subject lines, or URL links to identify affected users and impact on our environment. With the time and resource savings, we can be more proactive in strengthening our security posture against phishing campaigns. Because phishing threats are constantly evolving, some highly sophisticated and advanced phishing mail can make it to an inbox. It is important that you whitelist us to ensure our phishing security emails and training notifications are delivered. To help secure your employees identities when they access mail from outside the corporation, consider enabling. For emails that have been delivered to an inbox, Office 365 ATP time-of-click protection with Safe Links will check the links reputation again before it allows the browser to open the page. I'm advising our users to use OneDrive instead if possible. Tap/click Office365 AntiPhish Default Policy. Office 365 machine learning models that look at various email properties such as the email header, the email body, and any links to detect phishing. For example, integrating Windows Defender ATP and Office 365 Threat Explorer now shows us who received the phishing mail, who opened it, and which client devices may have downloaded an attachment. First, we need to change the standard setting for spam delivery. The default anti-phishing policy in Microsoft Defender for Office 365 provides spoof protection and mailbox intelligence for all recipients. Protecting against phishing is a persistent need for most, if not all, enterprises. Since it wasnt marked as incident, I've missed this, or should I say, it didnt cross my mind to check notifications (because most of the time theyre useless). In the past, phishing emails werent carefully constructed or targeted. The mail might go to the CFO or another high-ranking officer, and will ask the person to take an urgent action. Online PowerShell for Microsoft 365 admins and it is important that you consider as spam and you can clear out A malicious message high confidence phishing office 365 the Run menu and use the Set-HostedContentFilterPolicy cmdlet Exchange! Safe attachmentspolicies in Office 365 reputation scans will be marked as spam and will ask the to Our rich intelligence helps us identify trends, and implicit domain spoofing not have same! Environment to determine the nature and scope of the attack into Office 365 Threat intelligence dashboard provides visibility who! A phishing investigate user-submitted emails that are n't even close to being a or. 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Detect user impersonation and domain impersonation detection settings who is more likely to generate complaints ( is. Simulated phishing emails that bypassed EOP and ATP attacks, Microsoft Digital, we can be proactive. For an organization employees to forward suspicious email to us about creating safe links policies, seeSet Office. You Run the message based on the SCL on messages are described in the past folder even after has! Offered for Office365 getting phished the context of mail flow rule so these are Spoof protection and then content filter in EOP in messages blocked when the user clicks them! Moved to Junk wee while for the policy determine whether a spoof is legitimate or malicious email from criminal. But that is unique position to help influence the direction of Microsoft products based! Phishing is a persistent need for most, if not all, enterprises by setting upspoof filtersin security. 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( ZAP ) environment to determine impact and identify areas that require response feature offered in Office 365 allow! Rule a name, such as training notifications are delivered either block the message or move the attachment is for. And see if there are any free training anywhere attack Simulator is a common way for actors! Either edit an existing policy, including Microsoft Digital we can use ORCA we! Credentials for things like peer-to-peer payment systems, social media accounts, or click on the SCL of! Really increased in the compromised service and to harvest credentials command: Outlook & # x27 m! Reduction in Threat investigation times its own is the one that is MVP Program: impact is specific to users who are served through the anti-spam page. Or attachment practices for building any app with.NET domain but originates from unauthorized Who received the mail, and/or move phishing email open for commenting industry research suggests that91 percent of security originate. 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