Security Bulletin

I implemented a new report today, the "Daily Trends" report. It summarizes noteworthy data received from our honeypot. As with everything, it will improve if you provide feedback :)

Learn how updating to Cisco SD-WAN, Cisco ThousandEyes, and Cisco Secure Routers helped Nestlé manage its global network with greater efficiency and resilience.

An uptick of ransomware activity by the group in late July that uses the vendor's SSL VPN devices for initial intrusion shows evidence of an as-yet-undisclosed flaw under exploitation.

Investing in building a human-centric defense involves a combination of adaptive security awareness training, a vigilant and skeptical culture, and the deployment of layered technical controls.

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

Just saw something that I thought was long gone. The username "pop3user" is showing up in our telnet/ssh logs. I don't know how long ago it was that I used POP3 to retrieve e-mail from one of my mail servers. IMAP and various webmail systems...

Random numbers are the cornerstone of cryptographic security — cryptography depends on generating random keys. As organizations adopt quantum-resistant algorithms, it's equally important to examine the randomness underpinning them

Dark Reading's 2025 News Desk marks a decade of Black Hat USA memories. We're making our return with a slate of interviews that help you stay up on the latest research from Black Hat — no trip to Las Vegas required.

As a technical advocate focused on cybersecurity in Learn with Cisco, my mission is to empower our community with the knowledge and tools to thrive in today’s ever-evolving landscape. Few cybersecurity events embody the spirit of innovation and...

Security debt ahoy: only about half of the code that the latest large language models (LLMs) create is cybersecure, and more and more of it is being created all the time.