Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
Microsoft Teams and Outlook Launch Failures on Windows ARM Devices After August 2026 Patch Tuesday — Detection, Validation, and Remediation Guide
Introduction Microsoft has resolved a regression introduced by updates released since the August 2026 Patch Tuesday cycle that prevented Mic...
Microsoft Teams Desktop Client Fails to Launch on Windows: Availability Incident Response and Defender Playbook
Microsoft has confirmed an active known issue causing delays — and in some cases outright failures — when users attempt to open the Microsof...
Defending Against Microsoft Teams Vishing and Chaos Ransomware
Defending Against Microsoft Teams Vishing and Chaos Ransomware Introduction Security Arsenal has tracked a concerning shift in the threat la...
Defending Against EtherRAT: Detecting Fake Microsoft Teams IT Support Calls
Defending Against EtherRAT: Detecting Fake Microsoft Teams IT Support Calls Introduction Security Arsenal is tracking a sophisticated social...
Slack and Teams Threat Detection: Addressing the SOC Visibility Gap
Introduction The perimeter has dissolved, and for many organizations, the new frontline is the chat window. While email security stacks have...
DragonForce Ransomware: Detecting Microsoft Teams C2 Abuse and Go-Based Access Tools
Introduction The threat landscape has evolved once again with the confirmation that the DragonForce ransomware operation is actively abusing...
ModeloRAT Campaign Analysis: Microsoft Teams to Domain Compromise Detection Guide
ModeloRAT Campaign Analysis: Microsoft Teams to Domain Compromise Detection Guide Excerpt Attackers are abusing Microsoft Teams for initial ...
UNC6692 Campaign: Defending Against Microsoft Teams Phishing, S3 Payloads, and Snow Malware
UNC6692 Campaign: Defending Against Microsoft Teams Phishing, S3 Payloads, and Snow Malware Introduction A sophisticated threat actor tracke...
UNC6692 'Snow' Malware via Microsoft Teams: Detection and Hardening Guide
Introduction A threat group tracked as UNC6692 is actively abusing Microsoft Teams as an initial access vector to deliver a custom malware s...