Cisco EVP and COO Maria Martinez is leaving on the heels of a companywide layoff notice impacting 5 percent of the global workforce, and as Cisco’s pending $28 billion acquisition of Splunk looms.

Hackers backed by a powerful nation-state have been exploiting two zero-day vulnerabilities in Cisco firewalls in a five-month-long campaign that breaks into government networks around the world, ...

On Monday, Cisco reported that a critical zero-day vulnerability in devices running IOS XE software was being exploited by an unknown threat actor who was using it to backdoor vulnerable networks.

Cisco Systems Inc (NASDAQ: CSCO) announced a $28 billion all cash deal to buy cyber security company Splunk SPLK last week, marking the networking major’s largest acquisition yet. Splunk is a market ...

Cisco has disclosed that cybercriminals stole the basic profile information of users registered on Cisco.com following a voice phishing (vishing) attack that targeted a company representative. After ...

50,000 Cisco firewalls vulnerable to actively exploited RCE flaws CVE-2025-20333 and 20362 Cisco and CISA urge immediate patching; no workarounds available for affected ASA/FTD devices Shadowserver ...