Tag: microsoft teams
39 articles
Microsoft Teams Targeted in IT Support Impersonation Schemes
Beware of scammers impersonating IT support on Microsoft Teams - a recent study found that 1 in 990 external contacts showed signs of impersonation, with 30% of organizations encountering at least one such contact in the first half of 2026. Attackers are now using Teams as a primary tactic to gain access, marking a shift towards more interactive and deceptive methods.
Microsoft Bolsters Teams with Deepfake Detection Tools
Microsoft is stepping up its game to keep Teams meetings secure by integrating deepfake detection tools from trusted third-party providers, helping organizations spot synthetic audio and video. This new feature, set to roll out globally in November, will enable Teams to flag suspicious meeting content.
Microsoft Enhances Teams Security with Custom File Extension Blocking
Microsoft Teams just got a major security boost: admins can now customize file type blocking to shield their organization from malicious threats, giving them more control over what file types are allowed or blocked. This update builds on Teams' built-in safety feature, Weaponizable File Protection, which scans conversations for high-risk file attachments.
Microsoft Resolves Teams, Outlook Launch Failures on ARM Windows PCs
Microsoft has fixed a frustrating issue that prevented Microsoft Teams and Outlook from launching on ARM-based Windows PCs, such as Surface Pro 11 and Surface Laptop 7, after installing certain security updates. The problem, affecting devices running Windows 11 24H2 or later, has been resolved with the latest patch.
Microsoft Probes Teams Desktop Client Outage on Windows Systems
If you're having trouble launching Microsoft Teams on your Windows device, you're not alone - some users are experiencing loading delays of up to two minutes or being blocked from opening the client altogether. Microsoft is actively working to resolve the issue, which appears when first opening the desktop client.
Cyber Attacks Exploit Legitimate Tools for Rogue Access
Cyber attackers are sneaking into systems through the front door - by exploiting legitimate tools and services to gain rogue access, with a recent dark-web claim boasting of 153 million stolen U.S. and Canadian driver's licenses. Attackers are finding clever ways to impersonate trusted sources, like IT personnel, to get inside and take control.
Microsoft Teams, Outlook plagued by launch failures on ARM Windows PCs
If you've installed Windows security updates on or after August 11, 2026, on your ARM-based Windows PC, you might be experiencing frustrating launch failures with Microsoft Teams and the new Outlook. This issue affects devices like Surface Pro 11 and Surface Laptop 7, causing these essential apps to fail to launch or close unexpectedly.
Microsoft Teams Targeted in Voice Phishing Campaigns
Beware of voice phishing scams on Microsoft Teams! A recent campaign, dubbed Spring Ring, used fake IT help desk accounts to trick over 150 employees across 10 organizations into granting remote access.
Microsoft Bolsters Teams Security With Automated Bot Blocking
Microsoft just supercharged Teams security with a game-changing update that automatically blocks suspicious bots from crashing your meetings. Now, you can keep unwanted guests out for good, with no need for manual approval.
SynkLoader Malware Targets Microsoft Teams Users in Phishing Campaign
Beware of phishing messages on Microsoft Teams that claim to be from your IT help desk - they may be laced with SynkLoader malware, a newly discovered threat that's being spread through seemingly legitimate downloads hosted on Microsoft Azure. These attacks use a clever tactic to gain your trust, but don't be fooled!
Attackers Exploit Trusted Collaboration Platforms for Identity Abuse
Collaboration platforms like Microsoft Teams and Slack have become a prime target for attackers, who are exploiting their trusted status to launch identity abuse attacks through chat phishing operations. These attacks are thriving, with 99% of alerts generated by one study related to chat phishing, signaling a major shift away from traditional email-based attacks.
TWINLOOT Exploits Microsoft Services to Steal Credentials
Meet TWINLOOT, a sneaky Python implant that hides its command-and-control infrastructure inside trusted Microsoft services, making it super hard to detect. It uses SharePoint Online and Microsoft Teams to operate undetected, even leveraging a victim's own Edge browser to blend in.
Microsoft Teams Impersonation Attacks Deploy Chaos Ransomware
Cyber attackers are impersonating IT helpdesk staff on Microsoft Teams to trick employees into installing ransomware, with one financially motivated operation deploying Chaos ransomware in a matter of minutes. They use convincing voice calls and chats to gain remote access, often within just 2-3 minutes.
Phishing Campaign Exploits Microsoft Authentication
Cyber attackers have found a sneaky new way to steal corporate accounts by exploiting Microsoft's authentication process, making it harder to spot fake requests. They've been sending emails that look like Microsoft Teams notifications, leading victims to a legitimate Microsoft URL that tricks them into granting access.
Phishing Campaign Operation BlueDash Targets Teams Users with RMM Tools
Beware of Operation BlueDash, a sneaky phishing campaign that tricks Microsoft Teams users into downloading malicious RMM tools by masquerading as a genuine Microsoft Store update. Victims are cleverly directed to a fake store page that claims Teams needs to be updated to access a shared document.
Microsoft Teams Users Targeted by Fake IT Support Scam
Beware of fake IT support scammers on Microsoft Teams who are tricking unsuspecting workers into installing malware by posing as tech support staff. These impostors are using the popular collaboration platform to deceive and compromise employee devices.
Microsoft Teams Abused to Deploy EtherRAT Malware via Fake IT Support Calls
Beware of fake IT support calls on Microsoft Teams - hackers are using convincing tactics, including a phishing email with a malicious PDF, to trick victims into downloading the potent EtherRAT malware. They impersonate system administrators to gain your trust, making it crucial to stay vigilant.
Microsoft Bolsters Teams Security with Enhanced Bot Controls
Microsoft's new Teams admin policy gives you more control over third-party bots in meetings, allowing you to block unwanted guests and require explicit approval for external bots to join. This enhanced security feature can be easily managed for individual users or specific groups through the Teams Admin Center.
Microsoft Bolsters Teams Security with Enhanced Bot Protections
Microsoft is stepping up its Teams security game with enhanced bot protections, allowing admins to block third-party bots from joining meetings without approval. This new policy gives organizations greater control over who can access their meetings, helping to prevent malicious apps and unwanted disruptions.
Microsoft Fortifies Teams Against Bot Intrusions
Microsoft is stepping up its game to protect Teams meetings from unwanted bot intrusions by introducing a virtual bouncer that keeps automated accounts at bay. This new defensive measure is a significant boost to Microsoft Teams security.
Malicious Edge Extension Exploits Native Messaging for Malware Deployment
Beware of malicious Edge extensions that can deploy malware through native messaging, with attackers using social engineering tactics on Microsoft Teams to trick victims into installing fake updates. Once infected, victims are presented with a fake Outlook update page offering three options to deploy the Edgecution malware.
DragonForce Hackers Exploit Microsoft Teams to Conceal Backdoor Traffic
Meet Backdoor.Turn, a sneaky malware that uses Microsoft Teams to hide its secret communication with hackers, leveraging the platform's relay infrastructure to stay under the radar. By masquerading as a legitimate connection, it allows attackers to remotely control infected systems undetected.
Ransomware Gang Exploits Microsoft Teams for C2 Traffic
Meet the sneaky ransomware gang that hijacked Microsoft Teams to secretly control its victims' systems for two whole months, using sophisticated cyber tradecraft to stay under the radar. They pulled off this impressive heist with a custom backdoor and some clever C2 traffic disguises.
DragonForce Ransomware Exploits Microsoft Teams to Facilitate Months-Long Breach
Meet Backdoor.Turn, a sneaky new threat that uses Microsoft Teams to hide its tracks and wreak havoc on your network for months on end - and it's surprisingly sophisticated. This Go-based RAT masquerades as legit traffic by exploiting Teams' TURN relay servers.