Head Mare APT Exploits TrueConf Server Flaws to Deploy PhantomCore Backdoor Cybercriminals Head Mare APT Exploits TrueConf Server Flaws to Deploy PhantomCore Backdoor Do Son August 17, 2026 0 At a glance Actor/group Head Mare (tracked by Kaspersky; reclassified from hacktivist group to APT) Activity type... Read More Read more about Head Mare APT Exploits TrueConf Server Flaws to Deploy PhantomCore Backdoor