Hackers Weaponize Microsoft Teams Help Desk Calls for Malware and Network Lateral Movement

Vishing campaign abuses Microsoft Teams to give attackers a foothold in company networks

A coordinated voice-phishing (vishing) campaign, named Spring Ring, used fake IT support accounts on Microsoft Teams to trick employees into installing malware or granting remote access to their computers, according to Unit 42, Palo Alto Networks’ threat intelligence team. The campaign ran between January and April 2026 and reached more than 150 employees at more than 10 companies in different industries. The attackers registered external Micros…

Hackers Weaponize Microsoft Teams Help Desk Calls for Malware and Network Lateral Movement

Attackers are turning Microsoft Teams help desk calls into an entry point for malware and network compromise. A campaign tracked as Spring Ring used external accounts that resembled internal IT support to chat with employees, then call them and press for remote access or software execution. The activity ran from January through April 2026 and […] The post Hackers Weaponize Microsoft Teams Help Desk Calls for Malware and Network Lateral Movement …

Hackers Pose as IT Support on Microsoft Teams to Target More Than 150 Employees

A coordinated social-engineering campaign dubbed Spring Ring used external Microsoft Teams accounts to impersonate corporate IT help desk staff and target… Read more → The post Hackers Pose as IT Support on Microsoft Teams to Target More Than 150 Employees appeared first on IT Security News.