In May 2022, Cisco faced a cyberattack initiated through sophisticated voice phishing attacks, targeting a Cisco employee's Google account. The attacker managed to gain unauthorized access to Cisco's internal systems by exploiting the employee's synchronized credentials in a browser. Cisco's quick response allowed its security team to eliminate the attacker from their network before any significant damage could occur. Later, the ransomware gang Yanluowang claimed to have leaked Cisco's files on their website. Despite this, Cisco asserted that the incident had no operational impact on its business.
Source: https://www.ekransystem.com/en/blog/top-10-cyber-security-breaches
"id": "cis209050724",
"linkid": "cisco",
"type": "Cyber Attack",
"date": "05/2022",
"severity": "60",
"impact": "2",
"explanation": "Attack limited on finance or reputation"