Cisco Confirms Security Incident After Hacker Offers to Sell Data
Cisco confirms a security breach as a hacker offers stolen data for sale. Learn how the attack unfolded and what it means for corporate cybersecurity. Cisco Systems Inc., a global leader in networking hardware, has confirmed a significant security breach after a hacker claimed to have accessed sensitive data and put it up for sale. This incident has reignited concerns about corporate cybersecurity vulnerabilities, even among the most advanced tech giants. The breach reportedly occurred when a cybercriminal compromised an employee's personal Google account, allowing access to corporate credentials. Using a technique known as MFA (multifactor authentication) fatigue , the attacker overwhelmed the employee with authentication requests until one was approved. This granted them entry into Cisco's internal systems. Although the company claims the attack was quickly contained and no ransomware was deployed, the hacker boasted of stealing 80 GB of internal data —which has since been ad