With inboxes increasingly well guarded, cybercriminals are turning to a more vulnerable front in their attacks against your digital workforce.

Google’s Threat Intelligence Group (GTIG) is tracking a voice phishing (vishing) campaign that’s targeting hedge funds and financial firms. The researchers attribute the attacks to “UNC6671,” an extortion group formerly known as “BlackFile.” The attackers pose as IT staff informing employees of urgent, mandatory migrations.

Attackers are distributing a new Android malware called “WindRelay” via phone-based social engineering attacks, according to researchers at Group-IB. The attackers call the victims, impersonating bank employees and instruct them to install a malicious app. In one instance observed by Group-IB, the scammers carried out the entire attack in just thirteen minutes.

Social engineering remains a central part of modern cyberattacks, according to a new report from CrowdStrike. Attackers are increasingly turning to voice phishing because it bypasses traditional security controls and leaves little forensic evidence, since the social engineering takes place over the phone.

An initial access broker for ransomware gangs is targeting organizations with voice phishing (vishing) attacks through Microsoft Teams, according to researchers at Zscaler’s ThreatLabz.

Apple is warning users to be wary of unsolicited FaceTime calls amidst a wave of scams impersonating Apple Support, Malwarebytes reports. The scammers inform the user that there’s been fraudulent activity or a technical problem associated with their account, and trick the victim into handing over payment card details, banking credentials or Apple ID logins.