Microsoft Teams
Microsoft adds malicious link warnings to Teams private chats
Microsoft Teams will automatically alert users when they send or receive a private message containing links that are tagged as malicious. Microsoft will introduce these new warnings for messages containing URLs that have been flagged as spam, phishing, or malware, for all Microsoft Defender for Office 365 (MDO) and Microsoft Teams enterprise customers. The new link […]
Microsoft: Anti-spam bug blocks links in Exchange Online, Teams
Microsoft is working to resolve a known issue that causes an anti-spam service to mistakenly block Exchange Online and Microsoft Teams users from opening URLs and quarantine some of their emails. In a service alert seen by GeekFeed, the company stated that the issue is caused by the anti-spam engine incorrectly tagging URLs contained within other URLs […]
Microsoft shares workaround for Teams “couldn’t connect” error
Microsoft is resolving a known issue that causes “couldn’t connect” errors when launching the Microsoft Teams desktop and web applications. The company states that the error is caused by a recent change to Teams’ sidebar, but has yet to disclose which regions are affected by this ongoing issue. While Microsoft has yet to share more […]
Microsoft Teams to protect against malicious URLs, dangerous file types
Microsoft recently revealed that it’s enhancing protection against dangerous file types and malicious URLs in Teams chats and channels. “Microsoft Teams now blocks messages containing weaponizable file types, such as executables, in chats and channels, increasing protection against malware and other file-based attacks,” the company said in a Microsoft 365 roadmap update this week. “Microsoft Teams can […]
New Ghost Calls tactic abuses Zoom and Microsoft Teams for C2 operations
A new post-exploitation command-and-control (C2) evasion method called ‘Ghost Calls’ abuses TURN servers used by conferencing apps like Zoom and Microsoft Teams to tunnel traffic through trusted infrastructure. Ghost Calls uses legitimate credentials, WebRTC, and custom tooling to bypass most existing defenses and anti-abuse measures, without relying on an exploit. This new tactic was presented […]
Attackers exploit link-wrapping services to steal Microsoft 365 logins
A threat actor has been abusing link wrapping services from reputed technology companies to mask malicious links leading to Microsoft 365 phishing pages that collect login credentials. The attacker exploited the URL security feature from cybersecurity company Proofpoint and cloud communications firm Intermedia in campaigns from June through July. Some email security services include a […]
Microsoft Teams voice calls abused to push Matanbuchus malware
The Matanbuchus malware loader has been seen being distributed through social engineering over Microsoft Teams calls impersonating IT helpdesk. Matanbuchus is a malware-as-a-service operation seen promoted on the dark web first in early 2021. It was advertised as a $2,500 Windows loader that executes malicious payloads directly in memory to evade detection. In June 2022, threat analyst Brad […]
ChatGPT will soon record, transcribe, and summarize your meetings
OpenAI may be planning to challenge Microsoft Teams Copilot integration with a new “Record” feature in ChatGPT. While ChatGPT supports third-party services, it’s not yet possible to use it to summarize live meetings or generate an AI-powered transcript. As spotted by X user M1Astra, ChatGPT mobile app code clearly mentions a “Record” feature for live meetings that supports […]
Microsoft Teams will soon block screen capture during meetings
Microsoft is working on adding a new Teams feature that will prevent users from capturing screenshots of sensitive information shared during meetings. Those joining from unsupported platforms will be automatically placed in audio-only mode to protect shared content. The company plans to start rolling out this new Teams feature to Android, desktop, iOS, and web users worldwide in July […]
New Microsoft 365 outage impacts Teams and other services
Microsoft is investigating a new Microsoft 365 outage affecting multiple services across North America, including the company’s Teams collaboration platform. Since the incident started over two hours ago, outage monitoring service Downdetector has received thousands of user reports, with most affected users saying they’re experiencing server connection and website problems when trying to access Microsoft 365 […]