A new wave of attacks is quietly abusing everyday collaboration tools to bypass user suspicion and gain hands-on control of corporate endpoints. Threat actors are impersonating internal IT helpdesk staff inside Microsoft Teams, convincing employees to grant remote access via Quick Assist, and then using that live access to deploy stealthy persistence mechanisms and move laterally through enterprise networks. Because
Tag: Microsoft Teams
Microsoft Teams Desktop Update Breaks Launch for Some Users After Caching Regression
A subset of Microsoft Teams desktop users found themselves unable to launch the application after a recent service update introduced a caching regression. Affected clients became stuck on the loading screen, displaying an error that advised users to refresh, and could not complete the app’s startup sequence. Microsoft has acknowledged the incident and moved to roll back the update while
Microsoft 365 Network Disruption Hits Exchange Online, Teams, and Core Services
A sudden network-level disruption on April 8, 2026 knocked several core Microsoft 365 services offline or degraded their performance for many users. What began as a spike in telemetry and rapid customer reports at 8:37 PM IST (3:07 PM UTC) quickly became an enterprise-wide concern as Exchange Online, Microsoft Teams, and broader Microsoft 365 functionality showed interruption. Microsoft classified the
Microsoft strips EXIF metadata from Teams images to protect employee privacy
On March 2026’s feature rollout, Microsoft updated Teams to automatically remove EXIF metadata from images shared in chats and channels. The change aims to prevent accidental leaks of GPS coordinates, device details, and time stamps—data that can be exploited for targeted attacks or unwanted location disclosure. The move is part of a broader push to bake privacy and security into
KB5079473 Chaos: How a Windows 11 Patch Locked Out Teams, OneDrive and Personal Accounts
A routine March cumulative update meant to keep Windows secure instead produced a glaring user-impacting regression. After Microsoft pushed KB5079473 (OS Build 26100.8037) on March 10, a subset of Windows 11 devices began failing to sign in to consumer Microsoft services. The result: personal OneDrive syncs stopped working, Microsoft Teams Free users could not authenticate, and Office features tied to