Security Bulletin

Discover how Cisco helps hyperscale, neocloud, service provider, and enterprise customers evolve their networks for AI with high-performing pluggable optics for AI data centers and by connecting data centers with coherent pluggable optics that...

Organizations are seeking assistance to fix critical vulnerabilities. Solutions that orchestrate and automate network device protection put us on the right path.

Learn how Cisco's integrated approach, embedding OT asset visibility and secure remote access into industrial switches, eliminates security blind spots, reduces TCO, and fosters IT and OT collaboration.

This weekend, I noticed three related headers being used in requests to some of our honeypots for the first time [1]:

Discover how embracing IPv6’s vast address space can simplify your network design and unlock new possibilities—plus, learn how Cisco is supporting customers on their journey to an IPv6-powered future.

AI agents use the same networking infrastructure as users and apps. So security solutions like zero trust should evolve to protect agentic AI communications.

The China-backed threat actors have used the previously undiscovered infrastructure to obtain long-term, stealthy access to targeted organizations.

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Experts agree there have been subtle improvements, with new laws and applied best practices, but there is still a long way to go.

Exploitation of CVE-2025-42957 requires "minimal effort" and can result in a complete compromise of the SAP system and host OS, according to researchers.

The biggest vulnerabilities may lie at the boundaries of where the AI agent connects with the enterprise system.

TAG-150 is running a multifaceted and relatively successful malware-as-a-service operation, without advertising itself on the Dark Web.