Tag: microsoft teams
39 articles
Ransomware Gang Exploits Microsoft Teams to Conceal Malicious Traffic
Meet Backdoor.Turn, a sneaky new malware that's abusing Microsoft Teams to hide its malicious activities - and it's a game-changer for cyber threats. This clever RAT uses Teams' own infrastructure against us, making it harder to spot its secret communications.
Threat Actors Exploit Microsoft Teams for Phishing Attacks
Phishing attacks are getting smarter, with threat actors now using trusted platforms like Microsoft Teams to target unsuspecting employees, accounting for 42% of all phishing alerts in just the first four months of 2026. These sneaky messages can land directly in your feed, masquerade as internal IT support, and trick you into taking action with alarming ease.
Microsoft Probes Office Apps, Teams File Access Outage
Microsoft is currently investigating an issue that's preventing some users from accessing files in Office for the web and Microsoft Teams, with affected users seeing an error message stating that Office Online services are temporarily unavailable. The company is working to restore services as soon as possible.
Microsoft Teams Hit by macOS Update Glitch
If you're a macOS user of Microsoft Teams, you might have encountered a frustrating glitch - a location-permission dialog that just won't go away, no matter how many times you click "Don't Allow". This annoying issue started surfacing on May 11, with some users reporting they had to click "Don't Allow" up to 20 times in a row.
KongTuke Hackers Exploit Microsoft Teams for Rapid Corporate Breaches
KongTuke hackers have found a lightning-fast way to breach corporations, exploiting Microsoft Teams to go from initial contact to persistent foothold in under five minutes. This alarming new tactic is part of KongTuke's evolving social engineering toolkit, complementing its previous web-based attacks.
MuddyWater Exploits Microsoft Teams in False Flag Ransomware Attacks
MuddyWater hackers are impersonating Chaos ransomware affiliates, using clever social engineering tactics via Microsoft Teams to steal credentials and gain access to sensitive systems. Their sophisticated campaign involves interactive screen-sharing and manipulation of multi-factor authentication.
Microsoft Teams Free Disrupted by Backend Change
A recent backend change has caused issues for new users of Microsoft Teams Free, skipping crucial onboarding and privacy consent steps and leaving their profiles incomplete. As a result, these users appear as 'Unknown users', can't be found in searches, and struggle to connect with others in chat.
Microsoft Teams Used to Deploy Sophisticated Snow Malware
Cyber attackers have cleverly used Microsoft Teams to deploy a sophisticated malware suite, dubbed Snow, by tricking victims into installing a fake anti-spam patch that ultimately led to prolonged access, credential theft, and domain compromise. They started by creating a sense of urgency through email bombing, then followed up with a direct message on Microsoft Teams.
Threat Actors Exploit Microsoft Teams for SNOW Malware Deployment
Cyber attackers are exploiting Microsoft Teams by impersonating IT helpdesk staff, tricking victims into accepting chats from unfamiliar accounts and deploying SNOW malware. They start by flooding inboxes with urgent emails, then pose as IT support over Teams, offering to fix the problem.
UNC6692 Exposes Custom Malware Suite via Social Engineering
In a clever social engineering ploy, UNC6692 launched a massive email campaign in late December 2025, flooding targets with messages to create a sense of urgency and distraction, before following up with a convincing Microsoft Teams message that pushed a malicious link. The attackers then cleverly disguised their malware as a legitimate "Mailbox Repair and Sync Utility" patch, hosted on an Amazon S3 page.
Microsoft Edge update disrupts Teams meeting joins for some users
A recent Microsoft Edge update has caused a frustrating issue for some users, preventing them from joining Microsoft Teams meetings. Microsoft is aware of the problem and is working to resolve it, but for now, affected users are left hanging.
Microsoft Teams Introduces Efficiency Mode to Optimize Performance on Low-Resource PCs
Boost your Microsoft Teams experience on low-resource PCs with the upcoming Efficiency Mode, rolling out in May 2026, which optimizes performance by adjusting video resolution and app behavior for a seamless experience. This update will breathe new life into hardware-constrained devices, ensuring responsiveness and meeting quality don't suffer.
Microsoft Teams Targeted in Rising Helpdesk Impersonation Attacks
Microsoft is sounding the alarm on a growing threat: hackers are exploiting Microsoft Teams' external collaboration features to impersonate helpdesk teams and gain access to enterprise networks. They're using the platform's own tools to move undetected, posing a major challenge for defenders.
Microsoft Reverses Update That Crippled Teams Launches
Microsoft swiftly reversed a recent update that left some users unable to launch the Teams desktop client, ensuring a quick fix for those affected. The move highlights the company's commitment to minimizing disruptions and prioritizing a seamless user experience.
Edge Update Disrupts Microsoft Teams Paste Function
A recent Microsoft Edge update has introduced a frustrating bug that breaks the right-click paste function in Microsoft Teams chats, causing inconvenience for users who rely on quick clipboard actions. This unexpected glitch is a major disruption for Teams users who depend on seamless communication.