Nearly 22,000 Microsoft Exchange servers vulnerable to hijack attacks

BleepingComputer reports multiple cybersecurity incidents and advisories, including nearly 22,000 internet-exposed Microsoft Exchange servers vulnerable to a high-severity authentication bypass enabling mailbox hijacking, exploitation of recently patched PaperCut zero-days for data theft, TerminalFix social engineering attacks delivering PowerShell reverse tunnels, Cisco router compromise for espionage, ransomware-related data theft, infostealer theft of Claude sessions, and major cryptocurrency and ATM attacks. The collection also includes service outages, software defects, law-enforcement,แ్