Within 24 hours of the Heartbleed bug’s disclosure last week, an attacker used it to break into a major corporation, security experts said Friday.
Using Heartbleed, the name for a flaw in security that is used in a wide range of web servers and Internet-connected devices, the attacker was able to break into an employee’s encrypted virtual private network, or so-called VPN, session.
From there, the hacker or hackers used the Heartbleed bug about 1,000 times until successfully extracting information like passwords to get broader access to the victim’s network, said researchers at Mandiant, a cybersecurity firm.