Adobe security breach could compromise 38 million users

This month's security breach at Adobe is turning out to be much more widespread than the company first let on. At least 38 million users have been affected by the early October incident.

When Adobe announced the breach on Oct. 3, it said that attackers stole user names and encrypted passwords for an undisclosed numbers of users, along with encrypted credit or debit card numbers and expiration dates for 2.9 million customers. Krebs on Security now reports on the full extent of the attack, confirming the 38 million figure with Adobe.

[ Also on InfoWorld: Adobe fesses up to hack but fudges on details. | Keep up with key security issues with InfoWorld's Security Adviser blog and Security Central newsletter. ]

The total damage could go beyond 38 million users if a recent file dump at AnonNews.org is any indication. According to Krebs on Security, the 3.8GB file includes more than 150 million usernames and hashed passwords, all taken from Adobe. The same file also apparently turned up on a server with the other stolen Adobe data.

Adobe says that 38 million active users users were affected, whereas the other usernames and passwords could include inactive IDs, test accounts, and IDs with invalid passwords. However, Adobe is still investigating, and given the tendency of users to repeat the same usernames and passwords across multiple Web services, inactive account holders could still face a security risk. Adobe is trying to notify inactive users of the breach and has already reset passwords for active users who were affected.

To make matters worse, Krebs on Security and Hold Security both claim that the hackers stole source code for flagship products such as Photoshop, Acrobat, and Reader. Adobe acknowledged that at least some Photoshop source code was stolen; the company is trying to get the data taken down.

In a blog post, Hold Security suggested that the source code theft could have far-reaching security implications. "While we are not aware of specific use of data from the source code, we fear that disclosure of encryption algorithms, other security schemes, and software vulnerabilities can be used to bypass protections for individual and corporate data," the firm wrote. "Effectively, this breach may have opened a gateway for new generation of viruses, malware, and exploits."

Active Adobe users affected by the breach should have received a notification from the company by now, prompting them to change passwords. As always, users can employ several strategies to keep their data safe, such as setting different passwords on each site or setting up a password manager.

Source: http://podcasts.infoworld.com/d/security/adobe-security-breach-could-compromise-38-million-users-229746?source=rss_applications
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