Security Bulletin

After infiltrating ESXi instances by leveraging known vulnerabilities or stolen admin credentials, ransomware gangs proceed to utilize the built-in SSH service to facilitate lateral movement and ransomware delivery without being detected, according...

Threat actors who send out phishing messages have long ago learned that zero-width characters and unrendered HTML entities can be quite useful to them. Inserting a zero-width character into a hyperlink can be used to bypass some URL security checks...

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As the demand for specialized network design skills in AI and automation continues to climb, important changes are coming to the Cisco Certified Design Expert (CCDE) program, effective February 9, 2025.

The number of CISOs who report directly to the CEO is up sharply in recent years, but many still say it's not enough to secure adequate resources.

CISA warned that attackers are chaining a number of CVE-listed vulnerabilities into a single exploit script.

Nearly 1,000 imitation pages were discovered, targeting users looking for other software.

A departmentwide initiative has now led to five major law enforcement actions, in an attempt to curb the increasingly common trend of North Korean hackers posing as IT job applicants.

Small and midsize companies tend not to check for NAS updates, so customers advised to patch right away.

The MITRE framework's applied exercise provides defenders with critical feedback about how to detect and defend against common, but sophisticated, attacks.