New research reveals millions of host sites are without TLS encryption TLS encryption allows end-to-end encryption for safer ...

Update January 03, 10:23 EST: Shadowserver has suspended the IMAP and POP3 TLS reports because of potential false positives. Over three million POP3 and IMAP mail servers without TLS encryption are ...

The espionage group Winter Vivern resurfaces, exploiting a critical zero-day vulnerability in the widely used Roundcube Webmail service. Researchers at ESET, a prominent cybersecurity firm, have been ...

Censys warns that over 1.5 million Exim mail transfer agent (MTA) instances are unpatched against a critical vulnerability that lets threat actors bypass security filters. Tracked as CVE-2024-39929 ...

Threat actors, likely supported by the Russian government, hacked multiple high-value mail servers around the world by exploiting XSS vulnerabilities, a class of bug that was among the most commonly ...

A North Korean hacking collective is exploiting poorly configured email servers to attack academic institutions, think tanks, journalists, and nonprofit organizations, U.S. agencies warned Thursday.