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Patch now: Cisco recently disclosed four actively exploited zero-days affecting millions of devices, including three targeted by a nation-state actor previously discovered to be behind the "ArcaneDoor" campaign.

The China-linked cyber-espionage group UNC5221 is compromising network appliances that cannot run traditional EDR agents to deploy new versions of the "Brickstorm" backdoor.

We've reached a milestone that underscores this legacy: Cisco has been granted its 25,000th U.S. patent. This is not just a number; it is proof of the scale, consistency, and depth of the ideas born inside Cisco.

How one university transformed its infrastructure—and its future—through a strategic partnership and visionary leadership.

Yet again researchers have uncovered an opportunity (dubbed "ForcedLeak" for indirect prompt injection against autonomous agents lacking sufficient security controls — but this time the risk involves PII, corporate secrets, physical location data, and so much more.

Cisco is named a 2025 IDC MarketScape Leader for Enterprise Video Conferencing, recognizing our innovation, security, and partner-driven success that delivers unmatched collaboration solutions for every customer need.

Cisco announces software that makes distributed quantum computing work — releasing three research prototypes to advance Cisco’s quantum networking strategy:

Proactive problem-solving starts with a holistic, layer-by-layer approach to monitoring your AI infrastructure.