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All news with #azure entra id tag

32 articles · page 2 of 2

Microsoft Teams guest chat exposes cross-tenant blind spot

🔒 Security researchers warn that a cross-tenant collaboration design in Microsoft Teams can cause a user's Defender for Office 365 protections to be dropped when they accept a guest invitation and join another tenant. The default-enabled feature MC1182004 (chat with any email) lowers the bar for attackers to spin up hostile tenants and deliver links or files that bypass URL scanning, Safe Links, file sandboxing and zero-hour auto purge. Administrators are advised to treat guest access as a trust boundary: restrict B2B invites to vetted domains, enforce Entra ID cross-tenant policies, and disable the 'chat with Anyone' capability where appropriate.
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Microsoft hardens Entra ID sign-ins against script injection

🔒 Microsoft will strengthen the Entra ID browser sign-in experience starting mid-to-late October 2026 by enforcing a stricter Content Security Policy that permits scripts only from Microsoft-trusted CDN domains and approved inline sources. The change applies to sign-ins at login.microsoftonline.com; Microsoft Entra External ID is not affected. Administrators should test sign-in flows, remove code-injecting extensions and review developer-console violations to identify and address dependencies before the rollout.
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Microsoft Named Leader in Gartner Access Management

🔒 Microsoft has been recognized as a Leader in the 2025 Gartner Magic Quadrant for Access Management for the ninth consecutive year. The post highlights Microsoft Entra as a unified IAM and CIAM solution that consolidates controls, telemetry, and administration while integrating generative AI in the Entra admin center to streamline workflows and threat response. Microsoft calls out rising threats—nation-state actors and organized cybercrime using generative AI—and stresses that multifactor authentication and agent identity controls are essential to protect both human and non-human identities.
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Amazon S3 Access Grants Expand to Thailand and Mexico

🔒 Amazon S3 Access Grants are now available in the AWS Asia Pacific (Thailand) and AWS Mexico (Central) Regions. The feature maps corporate identities—such as Microsoft Entra ID or AWS IAM principals—to S3 datasets, enabling administrators to automate and scale dataset access. This reduces manual policy overhead and helps ensure consistent, auditable permissions. Check the AWS Region Table and product page for regional availability and details.
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Threat Actor Misuse of AzureHound for Cloud Discovery

🔍 AzureHound is an open-source Go-based enumeration tool designed for cloud discovery and red-team assessments that threat actors also misuse to map Entra ID and Azure resources. Unit 42 outlines how adversaries leverage Microsoft Graph and Azure REST APIs to enumerate users, groups, roles, storage and services and to identify privilege escalation paths. The report highlights observable artifacts such as the user-agent azurehound/ and discusses detection opportunities in Microsoft Graph, Entra ID sign-in logs and Cortex XQL hunts. Practical mitigations include phishing-resistant MFA, Conditional Access Policies, token binding and broad endpoint and cloud visibility.
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HP Pulls Update That Broke Entra ID Auth on AI PCs

⚠️ HP has pulled an over-the-air update to HP OneAgent for Windows 11 after a cleanup script removed Microsoft certificates required for some organizations to authenticate to Microsoft Entra ID. The silent update deployed on HP AI PCs ran package SP161710 and an install.cmd that deleted any certificate containing the substring "1E", producing false positives. Affected devices disconnected from Entra ID/Intune; HP says the update is no longer available and is assisting impacted customers.
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Microsoft temporary fix for Outlook encrypted errors

🔧 Microsoft is investigating a known issue that prevents users of the classic Outlook for Windows from opening OMEv2-encrypted emails sent from a different organization, producing the error message "Configuring your computer for Information Rights Management." As a temporary workaround, administrators can either exclude external users from Conditional Access requirements or enable cross-tenant trust for MFA claims in the Microsoft Entra admin center. Enabling cross-tenant trust is the recommended and easiest option, but both sending and receiving tenants must apply it for full cross-tenant compatibility.
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Microsoft Fixes Entra ID Token Flaw Allowing Impersonation

🔒 Microsoft has patched a critical token validation failure in Entra ID (formerly Azure AD), tracked as CVE-2025-55241 and assigned a CVSS score of 10.0. The flaw combined misused service-to-service (S2S) actor tokens issued by the Access Control Service (ACS) with a validation gap in the legacy Azure AD Graph API that enabled cross-tenant impersonation, including Global Administrators. Microsoft released a fix on July 17, 2025 and said no customer action is required; there is no indication the issue was exploited in the wild. Security firms warned the vulnerability could bypass MFA, Conditional Access and logging, potentially enabling full tenant compromise.
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Entra ID Actor Token Flaw Lets Attackers Impersonate Admins

🔒 Researchers disclosed a max-severity vulnerability in Microsoft Entra ID that allowed attackers to request and reuse internal Actor tokens to impersonate any user, including Global Administrators, across tenants. The issue stemmed from a legacy Azure AD Graph API that failed to validate the originating tenant, enabling cross-tenant impersonation without triggering MFA, Conditional Access, or audit logs. Microsoft patched the flaw, tracked as CVE-2025-55241, and rolled a global fix but experts warn that lack of historical visibility leaves uncertainty about past exploitation.
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Scattered Spider Resurfaces, Targets Financial Sector Again

🔍 Cyber threat group Scattered Spider has been linked to a new campaign targeting financial services, according to ReliaQuest. The attackers gained access by socially engineering an executive and abusing Azure AD self-service password reset, then moved laterally via Citrix and VPN to compromise VMware ESXi. They escalated privileges by resetting a Veeam service account, assigning Azure Global Administrator rights, and attempted data extraction from Snowflake and AWS. The activity contradicts the group's retirement claims and suggests regrouping or rebranding.
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Microsoft Enforces MFA for Azure Portal Sign-ins Globally

🔐 Microsoft has completed a global rollout enforcing multifactor authentication (MFA) for Azure Portal sign-ins across 100% of tenants as of March 2025. The rollout follows an initial enforcement announcement in May 2024 and prior warnings to Entra global admins to enable MFA to avoid access disruptions. Microsoft says this step strengthens account defenses and will be followed by mandatory MFA for Azure CLI, PowerShell, SDKs, and APIs in October 2025. The company cites internal research showing MFA dramatically reduces account takeover risk.
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Storm-0501 Exploits Entra ID to Exfiltrate Azure Data

🔐 Microsoft Threat Intelligence reports that the financially motivated actor Storm-0501 has refined cloud-native techniques to rapidly exfiltrate and delete data in hybrid Azure environments. The group leveraged on-premises footholds—using tools such as Evil-WinRM and a DCSync attack—to compromise an Entra Connect server and identify a non-human synced Global Admin account without MFA. With that account the attackers registered a threat actor-owned federated tenant as a backdoor, escalated Azure privileges, and proceeded to mass-extract data and remove resources and backups before extorting victims through compromised Microsoft Teams accounts. Microsoft has updated Entra ID behavior, released Entra Connect 2.5.3.0 to support Modern Authentication, and recommended enabling TPM, enforcing MFA, and other hardening controls.
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