microsoft defender for office 365
382 TopicsSecure Score isn't loading
Hi! For more than a week, the Microsoft Secure Score isn't displaying my organisation's score or any actions to review or recommended ones. I'm having problems with Teams' access lately and I need to check the security configurations as soon as possible. Does anyone have the same issue?354Views0likes4CommentsMonthly news - June 2025
Microsoft Defender XDR Monthly news - June 2025 Edition This is our monthly "What's new" blog post, summarizing product updates and various new assets we released over the past month across our Defender products. In this edition, we are looking at all the goodness from May 2025. Defender for Cloud has it's own Monthly News post, have a look at their blog space. Unified Security Operations Platform: Microsoft Defender XDR & Microsoft Sentinel From on-premises to cloud: Graph-powered detection of hybrid attacks with Microsoft exposure graph. In this blog, we explain how the exposure graph, an integral part of our pre-breach security exposure solution, supercharges our post-breach threat protection capabilities to detect and respond to such multi-faceted threats. (Public Preview) Unified detections rules list that includes both analytics rules and custom detections is in public preview. Learn more in our docs. The Best of Microsoft Sentinel — Now in Microsoft Defender. We are proud to share that the most advanced and integrated SIEM experience from Microsoft Sentinel is now fully available within the Microsoft Defender portal as one unified experience. (General Available) Multi workspace for single and multi tenant is now in General Available. (Public Preview) Case management now available for the Defender multitenant portal. For more information, see View and manage cases across multiple tenants in the Microsoft Defender multitenant portal. (Public Preview) You can now highlight your security operations achievements and the impact of Microsoft Defender using the unified security summary. For more information, see Visualize security impact with the unified security summary. (Public Preview) New Microsoft Teams table: The MessageEvents table contains details about messages sent and received within your organization at the time of delivery (Public Preview) New Microsoft Teams table: The MessagePostDeliveryEvents table contains information about security events that occurred after the delivery of a Microsoft Teams message in your organization (Public Preview) New Microsoft Teams table: The MessageUrlInfo table contains information about URLs sent through Microsoft Teams messages in your organization Unified IdentityInfo table in advanced hunting now includes the largest possible set of fields common to both Defender and Azure portals. Microsoft Defender for Endpoint (Webinar - YouTube Link) Secure Your Servers with Microsoft's Server Protection Solution- This webinar offers an in-depth exploration of Microsoft Defender for Endpoint on Linux. Defender for Endpoint successfully passes the AV-Comparatives 2025 Anti-Tampering Test. Discover how automatic attack disruption protects critical assets while ensuring business continuity. Microsoft Defender for Office 365 Part 2: Build custom email security reports and dashboards with workbooks in Microsoft Sentinel New deployment guide: Quickly configure Microsoft Teams protection in Defender for Office 365 Plan 2 New SecOps guide: Security Operations Guide for Teams protection in Defender for Office 365 Video - Ninja Show: Advanced Threat Detection with Defender XDR Community Queries Video- Mastering Microsoft Defender for Office 365: Configuration Best Practices Video - Ninja Show: Protecting Microsoft Teams with Defender for Office 365 This blog discussed the new Defender for Office 365 Language AI for Phish Model. SafeLinks Protection for Links Generated by M365 Copilot Chat and Office Apps. Microsoft Defender for Cloud Apps New Applications inventory page now available in Defender XDR. The new Applications page in Microsoft Defender XDR provides a unified inventory of all SaaS and connected OAuth applications across your environment. For more information, see Application inventory overview. The Cloud app catalog page has been revamped to meet security standards. The new design includes improved navigation, making it easier for you to discover and manage your cloud applications. Note: As part of our ongoing convergence process across Defender workloads, Defender for Cloud Apps SIEM agents will be deprecated starting November 2025. Learn more. Microsoft Defender for Identity (Public Preview) Expanded New Sensor Deployment Support for Domain Controllers. Learn more. Active Directory Service Accounts Discovery Dashboard. Learn more. Improved Visibility into Defender for Identity New Sensor Eligibility in the Activation page. The Activation Page now displays all servers from your device inventory, including those not currently eligible for the new Defender for Identity sensor. Note: Local administrators collection (using SAM-R queries) feature will be disabled. Microsoft Security Blogs Analyzing CVE-2025-31191: A macOS security-scoped bookmarks-based sandbox escape Marbled Dust leverages zero-day in Output Messenger for regional espionage Lumma Stealer: Breaking down the delivery techniques and capabilities of a prolific infostealer New Russia-affiliated actor Void Blizzard targets critical sectors for espionage Defending against evolving identity attack techniques Threat Analytics (Access to the Defender Portal needed) Activity profile - AITM campaign with brand impersonated OAUTH applications Threat overview: SharePoint Server and Exchange Server threats Vulnerability profile: CVE-2025-24813 – Apache Tomcat Path Equivalence Vulnerability Actor profile: Storm-0593 [TA update] Actor profile: Storm-0287 Activity Profile: Marbled Dust leverages zero-day to conduct regional espionage [TA update] Technique profile: ClickFix technique leverages clipboard to run malicious commands Technique profile: LNK file UI feature abuse Technique profile: Azure Blob Storage threats Activity profile: Lumma Stealer: Breaking down the delivery techniques and capabilities of a prolific infostealer Vulnerability profile - CVE-2025-30397 Activity profile: Recent OSINT trends in information stealers1.2KViews1like0CommentsHow to get access to Move or Delete e-mail?
So this week I had some phishing e-mails that made it past Defender's filtering and were delivered to user mailboxes. I wanted to pull them back, so I found the relevant message the Defender XDR portal, and clicked on Take Action, but the only option available to me there was Submit to Microsoft for review. All the others, including Move or Delete, which is what I wanted, were grayed out. I'll add that was doing this using my Global Admin account. Did some research and supposedly assigning my account the Data Investigator role or creating a custom role with Search and Purge capability would provide the desired access So I put my account into both of those groups, and I still can't access Move or Delete. Anybody know what I am missing here? I’d be grateful for any information.354Views0likes5CommentsSuggestion: Centralize Microsoft Defender XDR Role Management into Microsoft Entra ID
Microsoft Entra ID has evolved into a strong, centralized identity and access management solution. Likewise, the Defender XDR portal (formerly Microsoft 365 Defender) provides a unified experience for security monitoring, investigation, and response across endpoints, email, identities, and more. These tools are critical to modern SecOps. However, managing access across them is still more complex than it needs to be. Key challenges: Dual RBAC confusion: Defender for Endpoint uses its own RBAC system, separate from Entra ID. This leads to misunderstandings — for example, assigning a user the Security Reader role in Entra ID might not grant expected access in Defender once Defender RBAC is enabled. Hidden roles: Roles like Defender for Endpoint Administrator aren’t visible in the Entra portal, making centralized management harder. Access risks: Enabling Defender RBAC can revoke access for some users unless they’re added manually to MDE role groups — often without clear warning. Admin overhead: Managing permissions separately in Entra and Defender adds duplication, friction, and potential for misconfiguration. Suggestions Let’s build on the strength of Microsoft Entra ID by moving all Defender role assignments into Entra, where identity and access is already managed securely and consistently. Goal: Use only Entra ID roles to manage access to the Defender XDR portal — eliminating the need for custom RBAC roles or portal-based configurations in MDE, MDO, or MDI. Benefits of this change: Centralized, consistent access management across Microsoft security solutions Simplified admin experience with reduced configuration errors Better alignment with Zero Trust and least-privilege principles Clear, discoverable roles for Security and SOC teams Seamless experience during role onboarding/offboarding Suggested new Entra built-in roles for Defender XDR: Defender Endpoint Security Administrator Defender Email Security Administrator Defender Cloud Security Administrator SOC L1 Analyst (read-only) SOC L2 Analyst (response) SOC L3 Analyst (hunting) Defender XDR Administrator / Engineer Vulnerability Analyst Microsoft has done a fantastic job modernizing Entra and unifying security visibility in Defender XDR — and this would be a great next step forward. #MicrosoftEntraID #MicrosoftDefenderXDR #SecurityOperations #IAM #RBAC #CloudSecurity #ZeroTrust #MicrosoftSecurity #SecOps #SOC57Views1like1CommentSecure Score - gMSA not recognized ("Change service account to avoid cached password in registry")
Hello, we have several SQL Servers who were marked as "exposed devices" in the secure score recommendation "Change service account to avoid cached password in windows registry". The remediation option called for the use of "group Managed Service Accounts" ("gMSA"). We implemented those gMSAs. However, the servers are still marked as exposed. What did we do wrong? Is this a false-positive? I already did some checks with the help of Microsoft Copilot - there are no cached credentials for the gMSAs present, the Accounts are correctly set up (they are working for SQL Server services), and we don't use Microsoft Defender for Identity (if that is needed). Any advises? Thank you very much!101Views1like2CommentsInvestigation state Queued
I see a number of messages in our Defender XDR Incidents with a status of Queued. What does this status mean? This appears to only be related to Defender for Office 365 incidents, usually email reported as junk/phish/notjunk etc type of incidents. Regardless of whether I investigate or change the status of the incident, in remains in the Incidents list as queued. I cannot find clear documentation on what this state means or what action is required to resolve/close the incident. Can anyone shed any light on the what the queued state means and how to resolve a queued incident.1.8KViews0likes4CommentsMonthly news - May 2025
Microsoft Defender XDR Monthly news May 2025 Edition This is our monthly "What's new" blog post, summarizing product updates and various new assets we released over the past month across our Defender products. In this edition, we are looking at all the goodness from April 2025. Defender for Cloud has it's own Monthly News post, have a look at their blog space. Unified Security Operations Platform: Microsoft Defender XDR & Microsoft Sentinel What’s new in Microsoft Defender XDR at Secure 2025 New blog post: Empowering SOC Analysts: Investigating Identity Threats with Microsoft Defender XDR. (GA) Multi Tenant Organizations (MTO) expanded support for up to 100 tenants per view per user is now generally available! We are delighted to announce that Microsoft Defender MTO now supports the ability, for each user, to add up to 100 tenants to their view. We extended the number of tenants you can see in one single pane of glass – from 50 to 100. You can now view incidents, investigate, view device inventory and vulnerabilities on a larger number of tenants at the same time. Expanding Cross Cloud Multitenant Security Operations for Government Customers. This blog post summarizes a new capability that enhances multitenant security operations for government cloud customers, enabling cross-cloud visibility and centralized security management. We invite you to give this new capability a try! (Public Preview) The OAuthAppInfo table is now available for preview in advanced hunting. The table contains information about Microsoft 365-connected OAuth applications registered with Microsoft Entra ID and available in the Defender for Cloud Apps app governance capability. The OnboardingStatus and NetworkAdapterDnsSuffix columns are now available in the DeviceNetworkInfo table in advanced hunting. Automatic attack disruption: Enhanced containment for critical assets and shadow IT. This blog post introduces new, extended capabilities in automatic attack disruption. Announcing Rich Text for Case Management. In the dynamic world of SecOps, managing and communicating information efficiently is vital. Rich Text for Case Management introduces capabilities that allow you to enrich your case documentation with various formatting options, including bold, italics, underlining, code blocks, links, tables, and more. (Public Preview) You can now create data security investigations in the Microsoft Defender portal with the integration of Microsoft Purview Data Security Investigations (preview) and Microsoft Defender XDR. This integration allows security operations center (SOC) teams to enhance their investigation and response to potential data security incidents like data breaches or data leaks. Learn more in our docs. (Public Preview) Containing IP addresses associated with devices that are undiscovered or are not onboarded to Defender for Endpoint is now in preview. Containing an IP address prevents attackers from spreading attacks to other non-compromised devices. Learn more in our docs. Microsoft Defender for Endpoint Updated documentation Schedule antivirus scans using Group Policy Schedule antivirus scans using PowerShell Two new ASR rules are now generally available: Block rebooting machine in Safe Mode: This rule prevents the execution of commands to restart machines in Safe Mode. Block use of copied or impersonated system tools: This rule blocks the use of executable files that are identified as copies of Windows system tools. These files are either duplicates or impostors of the original system tools. (General Available) Defender for Endpoint supports ARM64-based Linux servers across various Linux distributions, including Ubuntu, RHEL, Debian, SUSE Linux, Amazon Linux, and Oracle Linux. All product capabilities that are supported on AMD64 devices are now supported on ARM64-based Linux servers. For more information, see the following articles: Tech Community Blog: Defender for Endpoint extends support to ARM-based Linux servers Microsoft Defender for Endpoint on Linux Microsoft Defender for Office 365 Announcing the Public Preview of Auto-Remediation of Malicious Entity Clusters Identified in Automated Investigation and Response (AIR). Defender for Office 365 automated investigation and response is being enhanced to enable AIR to automatically remediate malicious entity clusters. AIR currently recommends actions for SecOps to approve or decline and this enhancement will allow customers the option to configure auto-remediation for AIR to automatically execute the soft deletion of messages included in malicious URL or malicious file clusters. Options to "tune" controls within Defender for Office 365 for an organization to maximize protection and efficacy. We are pleased to announce that if you are using third-party report message solutions in Microsoft Outlook, such as Knowbe4, Hoxhunt, and Cofense, you can now configure Defender for Office 365 to automatically forward these suspicious messages to Microsoft for analysis. The Outlook.com consumer email service will require compliance with SPF, DKIM, and DMARC email authentication standards for domains sending more than 5000 messages to outlook.com, hotmail.com, and yahoo.com recipients as of 5 May, 2025. Learn more in this blog post.. Microsoft Defender for Cloud Apps Enhanced alert source accuracy. This update, applicable to new alerts only, are reflected across various experiences and APIs, including the Defender XDR portal, Advanced hunting, and Graph API. (Public Preview) Investigate OAuth application attack paths in Defender for Cloud Apps Microsoft Defender for Identity (General available) Identities guided tour New attack paths tab on the Identity profile page New and updated events in the Advanced hunting IdentityDirectoryEvents table Identity page enhancements such as user timeline side panel, password last change field on the UI, devices tab filters and others. Deprecation of Defender for Identity alert email notifications (Public Preview) Defender for Identity integration with Entra Privileged Identity Management (PIM) Privileged Access Management (PAM) vendors integration with Defender for Identity – CyberArk, Delinea and BeyondTrust Microsoft Security Blogs Threat actors leverage tax season to deploy tax-themed phishing campaigns As Tax Day approaches in the United States on April 15, Microsoft has detected several tax-themed phishing campaigns employing various tactics. These campaigns use malicious hyperlinks and attachments to deliver credential phishing and malware including RaccoonO365, AHKBot, Latrodectus, BruteRatel C4 (BRc4), and Remcos. Exploitation of CLFS zero-day leads to ransomware activity Microsoft Threat Intelligence Center (MSTIC) and Microsoft Security Response Center (MSRC) have discovered post-compromise exploitation of a newly discovered zero-day vulnerability in the Windows Common Log File System (CLFS) against a small number of targets. Microsoft released security updates to address the vulnerability, tracked as CVE 2025-29824, on April 8, 2025. Stopping attacks against on-premises Exchange Server and SharePoint Server with AMSI Exchange Server and SharePoint Server are business-critical assets and considered crown-jewels for many organizations, making them attractive targets for attacks. Threat actors misuse Node.js to deliver malware and other malicious payloads Since October 2024, Microsoft Defender Experts has observed and helped multiple customers address campaigns leveraging Node.js to deliver malware and other payloads that ultimately lead to information theft and data exfiltration. Understanding the threat landscape for Kubernetes and containerized assets The dynamic nature of containers can make it challenging for security teams to detect runtime anomalies or pinpoint the source of a security incident, presenting an opportunity for attackers to stay undetected. Microsoft Threat Intelligence has observed threat actors taking advantage of unsecured workload identities to gain access to resources, including containerized environments. Threat Analytics (Access to the Defender Portal needed) Activity profile: Tax and IRS-themed phishing campaigns [TA update] Tool profile: Grandoreiro banking trojan Activity profile - Threat actors using fake Chrome updates to deliver Lumma Stealer Actor profile: Storm-2256 Actor Profile - Storm-1877 [TA update] Vulnerability profile: CVE-2025-26633 Vulnerability profile - CVE-2025-29824 Activity profile: Cryptomining infection by malicious AutoIT scripts uses masqueraded Ncat for C2 communications Technique profile: ClickFix technique leverages clipboard to run malicious commands [TA update] Actor profile: Storm-1249 Tool profile - XCSSET Tool profile: ReedBed Quarterly cyber threat report: MITRE ATT&CK framework trends in OSINT (January to March 2025) Actor Profile - Storm-1125 Activity profile: Sapphire Sleet using GoLang files to download malware Technique Profile: Device Code Phishing1.5KViews1like0CommentsSecure Score - identifying actions marked as Resolved through Third Party
At the moment we have some recommendations that are addressed through a third party application (e.g. we use a third party to assess email for impersonation risk). I can mark this in secure score as resolved through Third Party which is great (we've found that email flow is too slow if we 'double' up the protection). What I'm trying to work out is that, if we decide to stop using the third party software, is there a way I can find the recommendations that have been marked as Resolved through Third Party? I can see that tagging the recommendation with the name of the Third Party might help identify them - but I can't see any way to filter or find the recommendations in Secure Score that do not have a Status of 'To address'? Can you filter on Status in the Secure Score section of Defender? If not, is there another way to access this underlying data and update it?90Views0likes2CommentsImporting Purview roles into XDR RBAC
I want to activate Email & collaboration into XDR RBAC, so in XDR RBAC, I go and "choose roles to import" and I see the built-in Purview eDiscovery Manager role. Ok, fine, so I choose to import it into XDR RBAC and assume that my two groups of users in that role group (eDiscovery Managers (Sally and Sue) and eDiscovery Admins (Bob)) would be different. Sally and Sue can only manage their own cases and Bob can manage all cases. Different roles. But after it imports, there's only 1 role: eDiscovery Manager and all my users are in there - Sally, Sue and Bob with "Raw data (Email & collaboration) " - both read permissions are selected. But that's it. Question 1) I'm confused on why the eDiscovery role is being imported into XDR RBAC and if that means that over in Purview, after I activate the "Defender for Office365" workload in XDR RBAC - will something change with what Sally and Sue and Bob can do in Purview eDiscovery? Will I still be managing my eDiscovery users in Purview roles for when I need to add Billy to the list of eDiscovery Admins? Question 2) I see that the other Purview role groups I have users assigned (Audit Manager and Organization Management as well as a custom "Search and Purge" role group) were also imported into XDR RBAC permissions and roles but yet aren't applicable until I activate the workload. Wondering what exactly will happen when I activate the Email & collaboration workload. Will anything negative happen to the PIM groups I gave the Purview role groups to? Would I then need to clean anything up over in Purview roles after I activate the workload in XDR RBAC? This isn't clear at all what to do after I activate the email and collaboration workload and can I just undo it if it messes anything up?26Views0likes0CommentsSecureScore bugs
There needs to be a way to submit feedback for SecureScore. There's so many outdated links within the 'implementation' tab, and so many quirks. For example, the 'enable safe attachments' policy will fail if you use a custom Quarantine policy, even if it IS admin-only. Feels kinda sketchy to be setting these to 'Resolved through Alternate Mitigation' when you actually haven't. Another example - the Outbound Spam filter specifies no limits for emails. However the documentation DOES. This should be part of the SecureScore recommendation, no? Not sure if this is the right hub - but this is where the doc links for feedback.36Views1like0Comments