Cisco disclosed that a China-linked hacking group exploited a previously unknown vulnerability in its email security products, allowing attackers to compromise systems that sit at the center of ...

Cisco is wheeling out three flavors of e-mail security services, the first of a series of hosted security services the company plans to announce. Customers can chose to have the service entirely ...

The company suffered one sophisticated five-alarm campaign and one messy spray-and-pray attack, mere days apart.

Cisco confirms zero‑day (CVE‑2025‑20393) in Secure Email appliances exploited by China‑linked actors Attackers deployed Aquashell backdoor, tunneling tools, and log‑clearing utilities for persistence ...

Chinese hackers are exploiting a critical Cisco email security flaw, gaining root access and installing backdoors. This zero-day vulnerability, CVE-2 ...

This post is a followup post from my colleague Garett Redelings, Enjoy! — Last month I had written about Cisco’s IronPort Application Visibility Controls. The information here on the Cisco SIO is a ...