u/EduardsGrebezs

Microsoft Defender Simple Flows

Microsoft Defender Simple Flows

Instead of building a full Logic App or playbook, you can select a trigger and attach a predefined action directly in Defender.

Some of the available capabilities include:
◈ Trigger automation when a case is created or updated
◈ Send case creation / update email notifications
◈ Automatically update case properties
◈ Create investigation tasks
◈ Update alerts directly from the automation workflow

Docs: Create basic automation rules with Simple Flows in the Microsoft Defender portal (preview) | Microsoft Learn

u/EduardsGrebezs — 14 days ago

Two Microsoft Defender for Identity updates in September 2026!

  • Defender for Identity Sensor v3.x no longer requires Defender for Endpoint onboarding. Eligible Domain Controllers running Windows Server 2019 or later can now activate the MDI Sensor v3.x without first onboarding the server to Microsoft Defender for Endpoint.

This removes an important deployment dependency and can significantly simplify Defender for Identity adoption in environments where MDE isn't deployed on Domain Controllers.

  • Sensor v3.x expands beyond Domain Controllers: Defender for Identity Sensor v3.x now supports additional identity infrastructure servers that are not Domain Controllers:
    • Active Directory Certificate Services (AD CS)
    • Active Directory Federation Services (AD FS)
    • Microsoft Entra Connect

For these new server roles, manual activation and automatic Windows event auditing are supported, while automatic activation and migration are not yet supported during Preview.

Docs: Defender for Identity | What's new?

u/EduardsGrebezs — 1 month ago

Memory Scan for Linux (Preview)!

This capability allows MDE to inspect process memory for known malicious behaviors and memory-resident threats — particularly useful against attacks that leave little or no footprint on disk.

Memory Scan adds another layer of detection and protection against techniques such as:
• In-memory malware
• Malicious code injection
• Memory-resident threats
• Advanced attacks designed to minimize disk artifacts

Docs: Configure security settings in Microsoft Defender for Endpoint on Linux - Microsoft Defender for Endpoint | Microsoft Learn

u/EduardsGrebezs — 1 month ago
▲ 46 r/entra

Microsoft 365 Baseline Security Mode — a useful addition for tenant hardening

Baseline security settings are providing centralized view of Microsoft-recommended security settings across:
- Microsoft Entra ID
- Exchange Online
- SharePoint & OneDrive
- Microsoft Teams / Room devices

The goal is straightforward: reduce the attack surface by identifying configurations that don’t meet minimum security. 

Before enabling a setting that could potentially break a legacy application or business workflow, administrators can generate an impact report and identify affected users or dependencies.

Generate impact report → Review dependencies → Enable the security control. 

You can find it under:
Microsoft 365 Admin Center → Settings → Org settings → Security & privacy → Baseline security mode

u/EduardsGrebezs — 1 month ago

Microsoft Defender Threat Intelligence APIs are now available without a separate MDTI license

As of August 1, 2026, Microsoft Threat Intelligence APIs in Microsoft Graph are available to customers with Microsoft Defender XDR and/or Microsoft Sentinel licensing. No separate Microsoft Defender Threat Intelligence API license is required.

This means we can bring Microsoft Threat Intelligence directly into SOC investigation and response workflows instead of keeping threat intelligence as something analysts only consume manually in the portal.

The available playbooks cover enrichment scenarios such as:
🔹 Automated triage
🔹 IP/domain reputation enrichment
🔹 Passive DNS
🔹 Reverse DNS
🔹 Web components
🔹 Trackers
🔹 Cookies

The playbooks use Microsoft Graph to query threat intelligence data and can authenticate using Managed Identity with the ThreatIntelligence.Read.All application permission.

https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Defender%20Threat%20Intelligence/Playbooks/readme.md

Docs: https://learn.microsoft.com/en-us/graph/api/resources/security-threatintelligence-overview?view=graph-rest-1.0

u/EduardsGrebezs — 2 months ago

Audit Mode for Microsoft Defender for Endpoint on Linux

Microsoft has introduced a new Audit Mode for Microsoft Defender Antivirus on Linux.

Until now, the main operating modes were Passive and Real-Time Protection. The new Audit Mode provides an additional option between the two.

What does Audit Mode do?
In Audit Mode, Microsoft Defender Antivirus:
- Performs real-time malware detection
- Generates security alerts
- Does not automatically quarantine malicious files
- Does not automatically terminate malicious processes

This can be useful when you want to evaluate Defender’s detection capabilities and understand the potential impact before enabling full Real-Time Protection.

u/EduardsGrebezs — 2 months ago

New extended User and Entity Behavior Analytics (UEBA) capabilities for Microsoft Sentinel, currently in Preview.

Fortinet FortiGate — 40+ new behaviors
Sentinel can now analyze FortiGate events from CommonSecurityLog and identify behaviors such as:
• Rapid system reconfiguration
• Configuration backups
• Certificate changes
• Security service disruptions

Expanded anomaly detection
New UEBA anomaly detection capabilities extend coverage to:
• Check Point
• Fortinet FortiGate
• Zscaler
• AWS GuardDuty

For Check Point, Fortinet, and Zscaler, Sentinel introduces new anomaly rules that analyze firewall, VPN, and web proxy activity.

Instead of relying only on static detection logic, UEBA can compare activity against historical user/device behavior and organizational patterns to identify potentially suspicious deviations.

⚠️ Important: To use extended UEBA capabilities, Microsoft Sentinel workspace must be onboarded to the Microsoft Defender portal as part of the Unified Security Operations experience.

Docs:https://learn.microsoft.com/en-us/azure/sentinel/whats-new?tabs=defender-portal#new-data-sources-for-ueba-behaviors-and-anomaly-detection-preview

u/EduardsGrebezs — 2 months ago
▲ 57 r/entra

Microsoft Entra ID: The countdown to the end of SMS & Voice MFA has started

Microsoft has officially announced a major authentication change that every Microsoft Entra administrator should be preparing for.

 Key milestones:

September 1, 2026 – Passkeys become the default authentication experience. Users relying on SMS or voice authentication will begin receiving prompts to register a passkey during MFA.

February 1, 2027 – Microsoft-provided SMS and Voice authentication will be fully retired. Organizations that continue to rely on Microsoft’s SMS or voice delivery without a customer-managed telecom provider risk authentication disruptions.

What should IT teams do now?

- Identify users still using SMS or Voice authentication

- Roll out Microsoft Authenticator, Windows Hello for Business, FIDO2 security keys, or Passkeys

- Educate users and start a phased migration well before the deadline

- If your organization has regulatory or operational requirements to keep SMS/Voice, evaluate customer-managed telecom providers available through the Microsoft Security Store before February 2027 (info will be on 18.09.26)

The earlier you start your migration, the smoother the transition will be for both administrators and end users.

Docs: https://learn.microsoft.com/en-us/entra/identity/authentication/concept-sms-voice-retirement

Also, there is option to opt-out for 1st of September. Microsoft added additional filter for identifying who is using SMS or voice call as primary 2FA method.

u/EduardsGrebezs — 2 months ago

Controlled Configuration for Microsoft Defender for Endpoint (Preview)

Microsoft has introduced Controlled Configuration for MDE. The main idea is to establish a cloud-managed source of truth for supported Microsoft Defender Antivirus settings. When enabled, policies delivered through Intune or Defender security settings management take precedence over settings configured via:

  • Group Policy
  • Configuration Manager
  • PowerShell/scripts
  • Local administrator changes

The goal is to eliminate configuration drift in environments where Defender has historically been managed through multiple channels.

Currently covered:

  • Defender Antivirus configuration (scan settings, exclusions, updates)
  • Attack Surface Reduction (ASR) rules
  • Defender CSP / Policy CSP AV settings
  • Local admin merge behavior

Not covered (yet):

  • Defender Device Control
  • EDR settings
  • Windows Firewall and other OS security settings

Controlled configuration in Microsoft Defender for Endpoint - Microsoft Defender for Endpoint | Microsoft Learn

u/EduardsGrebezs — 3 months ago

Premium Microsoft Defender Threat Intelligence is starting to appear in Microsoft Defender XDR.

Microsoft is rolling out Threat Intelligence Insights directly within the Microsoft Defender portal, bringing premium external threat intelligence closer to the analyst workflow.

This includes such insights like:
▪Reputation assessment
▪WHOIS information
▪DNS resolutions
▪Threat reports and attribution
▪Infrastructure details (trackers, cookies, certificates, and more)

Simply search for a URL, domain, IP address, or file hash in Microsoft Defender XDR, open the entity page, and review the new Threat Intelligence Insights.

https://preview.redd.it/uiv8c7218xeh1.png?width=2004&format=png&auto=webp&s=e6169666700c5b07cd5ff646328a06bad385f5d9

https://preview.redd.it/2zten7218xeh1.png?width=2940&format=png&auto=webp&s=dbf4d8a1a914d78083757d937af36ef54b004474

reddit.com
u/EduardsGrebezs — 3 months ago
▲ 31 r/entra

Passkeys by default and retirement of Microsoft-provided SMS and voice authentication

Starting September 1, 2026, passkeys will become the default authentication experience in Microsoft Entra.

At the same time, Microsoft will begin phasing out its Microsoft-managed SMS and voice authentication services in favor of more secure, phishing-resistant authentication methods.

By January 28, 2027, Microsoft-provided SMS and voice authentication will be fully retired. Organizations that still require these methods will need to configure a supported telecom provider through the Microsoft Security Store.

Key milestones:

📅 September 1, 2026 – Passkey rollout begins, users will be prompted to register passkeys during MFA sign-in, and registration campaigns will be enabled for eligible tenants.

📅 October 30, 2026 – Organizations can select supported telecom providers if they want to continue using SMS or voice authentication.

📅 January 28, 2027 – Microsoft-managed SMS and voice authentication is retired, and passkeys become the recommended default authentication method.

What should IT admins do now?

✅ Review your Authentication Methods policy in Microsoft Entra.

✅ Start educating users and rolling out passkeys.

✅ Identify applications or processes that still rely on SMS or voice MFA.

✅ Plan your migration well before the retirement deadline to avoid disruption.

This is another major step in Microsoft’s passwordless journey, helping organizations reduce phishing risks while improving the user sign-in experience.

📖 Docs: https://learn.microsoft.com/en-us/entra/identity/authentication/concept-sms-voice-retirement

https://preview.redd.it/441dhva8k5dh1.png?width=1583&format=png&auto=webp&s=42f07ef4dc1c3b584d84ba86df69f47ed8eb92c3

reddit.com
u/EduardsGrebezs — 3 months ago

Agent 365 connector in public preview

Microsoft has introduced the Agent 365 connector in public preview, bringing AI agent activity telemetry directly into Microsoft Sentinel.

Also, there is Microsoft Agent Identities (preview) Data Connector

With the new connector, security teams can monitor, hunt, and investigate AI agent activity using familiar Sentinel workflows. The telemetry is streamed into the Sentinel data lake, helping analysts correlate AI agent behavior with identity, endpoint, cloud, and other security signals.

Key capabilities include:

  • Unified telemetry across Agent 365 experiences
  • AI agent observability data normalized into an ASIM-aligned schema
  • Better hunting and analytics possibilities
  • Faster investigation with enriched context
  • Centralized visibility across digital environments

Try it out! 😄 Solution could be installed from Microsoft Sentinel Content Hub.

Docs:Agent 365 connector: Monitor, hunt, and investigate AI agent activity in Microsoft Sentinel | Microsoft Community Hub

https://preview.redd.it/1o4pa8mbu36h1.png?width=1913&format=png&auto=webp&s=9436842d049717e193aeb4f139f2a6a3c086f51a

https://preview.redd.it/sfhkx0mbu36h1.png?width=1915&format=png&auto=webp&s=6a5a2b903fe170e7206ee0e6933a0c53a66011be

https://preview.redd.it/w8f4b1mbu36h1.png?width=1914&format=png&auto=webp&s=e037ca0d83c2eb069b98f42a66a20913fcf54bb6

reddit.com
u/EduardsGrebezs — 4 months ago
▲ 10 r/entra

Microsoft Authenticator authentication method policy additional security-related settings

Did you know that Microsoft Authenticator authentication method policy has additional security-related settings?

✅ Show application name in push and passwordless notifications
✅ Show geographic location in push and passwordless notifications

However, by default their status are set to Microsoft managed, which means settings are in disabled state. 😄

From a security perspective, enabling these settings is a simple but valuable improvement. It gives users more context before approving a sign-in request and can help reduce the risk of MFA fatigue or accidental approval.

Recommendation: Change both settings from Microsoft managed to Enabled.

https://preview.redd.it/dt00kv79xe4h1.png?width=2940&format=png&auto=webp&s=8d32e2492c4fade450db04c16b79ae8b68001d64

https://preview.redd.it/212ubsv9xe4h1.png?width=2940&format=png&auto=webp&s=6b02bc1c825b5ee7abc7ae12ebe479244e5b5314

https://preview.redd.it/772j055axe4h1.png?width=1571&format=png&auto=webp&s=6d16f168a08c773859a445ddb53f4feae55a5c0b

https://learn.microsoft.com/en-gb/entra/identity/authentication/concept-authentication-default-enablement#microsoft-managed-settings

reddit.com
u/EduardsGrebezs — 5 months ago

Microsoft Defender for Endpoint: Automatic Device Isolation is now part of Automatic Attack Disruption (Preview)

When Defender identifies a high-confidence active attack, it can automatically isolate the affected device from the network while still maintaining communication with Microsoft Defender for Endpoint.

This helps reduce:

  1. Lateral movement
  2. Credential theft expansion
  3. Ransomware spread
  4. Data exfiltration opportunities
  5. Overall blast radius

Instead of only generating alerts and incidents, Defender XDR can take automated containment actions during an active attack chain. That gives analysts more time to investigate, validate scope, and perform remediation while the affected endpoint is already contained.

Recommended SOC actions:

  • Define exclusions for business-critical machines
  • Monitor isolation events in Action Center
  • Document release-from-isolation procedures
  • Update incident response runbooks

Docs:https://learn.microsoft.com/en-us/defender-endpoint/respond-machine-alerts#isolate-device---automatic-attack-disruption-preview

​

reddit.com
u/EduardsGrebezs — 5 months ago

Custom Data Collection in Defender for Endpoint

Microsoft has introduced Custom Data Collection in Defender for Endpoint, allowing security teams to collect additional, targeted endpoint telemetry beyond the default configuration.

Why this matters?:

  • Uses the existing Defender platform — no extra agents required
  • Reduces the need for complex custom logging solutions
  • Makes it easier to onboard business-specific telemetry scenarios
  • Enables focused and scalable event collection from endpoints
  • Provides native integration with Microsoft Sentinel for investigation and analysis

The collected data can then be analyzed in Microsoft Sentinel using dedicated custom event tables like:

  1. DeviceCustomProcessEvents
  2. DeviceCustomFileEvents
  3. DeviceCustomNetworkEvents
  4. DeviceCustomScriptEvents
  5. DeviceCustomImageLoadEvents

One important note: this requires dynamic device targeting and a connected Microsoft Sentinel workspace. Added some example as well

https://preview.redd.it/0cbivntcnn2h1.png?width=1915&format=png&auto=webp&s=5ea60ee4f1af35ad816156edb706d6b473fd6fdc

https://preview.redd.it/6asl5fhenn2h1.png?width=1475&format=png&auto=webp&s=600d5d31f292dd6915fead8012df0d9af5829fb9

https://preview.redd.it/x55uaghenn2h1.png?width=1473&format=png&auto=webp&s=b2571de95472e81104e348f862f8aaf6e3ab0dbb

reddit.com
u/EduardsGrebezs — 5 months ago

Identify which MFA methods your users actually use.

A simple KQL query against Sign-in logs gives you visibility into the MFA methods users are actually using:

SigninLogs
| where TimeGenerated > ago(90d)
| where ResultType == 0
| mv-expand AuthDetails = todynamic(AuthenticationDetails)
| extend AuthMethod = tostring(AuthDetails.authenticationMethod)
| where isnotempty(AuthMethod)
| where AuthMethod !in ("Previously satisfied")
| summarize AuthEvents = count(), Users = dcount(UserPrincipalName) by AuthMethod
| order by AuthEvents desc

https://preview.redd.it/nk9rrwqozj0h1.png?width=2664&format=png&auto=webp&s=7b6fab415cec249205902a39a05dd13f8c96e7fe

reddit.com
u/EduardsGrebezs — 5 months ago

Windows Secure Boot 2011 certificates will expire in June 2026, and devices need to move to the 2023 Secure Boot certificates and newer boot manager.

Microsoft Defender XDR now provides visibility into devices that still need this update, making it easier to track readiness and reduce exposure across the environment.

Exposure Management → Recommendations → Devices → Misconfigurations (good adjustment if you have also Windows Servers onboarded to Defender for Endpoint P2)

https://preview.redd.it/0zmvahs01g0h1.png?width=1903&format=png&auto=webp&s=a04983627c933f6ad2ddeca62445ccc40a85e1cd

https://preview.redd.it/liu81hs01g0h1.png?width=1901&format=png&auto=webp&s=45ac528a844e4c5bac2af9344705953e14be4122

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u/EduardsGrebezs — 5 months ago