UAT-9244 targets South American telecommunication providers with three new malware implants

Cisco Talos is disclosing UAT-9244, who we assess with high confidence is a China-nexus advanced persistent threat APT actor closely associated with Famous Sparrow. Since 2024, UAT-9244 has targeted critical telecommunications infrastructure, including Windows and Linux-based endpoints and edge...

New Attack Lets Hackers Decrypt VoLTE Encryption to Spy on Phone Calls

A team of academic researchers—who previously made the headlines earlier this year for uncovering severe security issues in the 4G LTE and 5G networks—today presented a new attack called 'ReVoLTE,' that could let remote attackers break the encryption used by VoLTE voice calls and spy on targeted...