The latest breach announced by LastPass is a major cause for concern to security stakeholders. As often occurs, we are at a security limbo – on the one hand, as LastPass has noted, users who followed LastPass best practices would be exposed to practically zero to extremely low risk. However, to say that password best practices are not followed is a wild understatement. The reality is that there are very few organizations in which these practices are truly enforced. This puts security teams in the worst position, where exposure to compromise is almost certain, but pinpointing the users who created this exposure is almost impossible.
To assist them throughout this challenging time, Browser Security solution LayerX has launched a free offering of its platform, enabling security teams to gain visibility into all browsers on which the LastPass extension is installed and mitigate the potential impacts of the LastPass breach on their environments by informing vulnerable users and require them to implement MFA on their accounts and if required, roll out a dedicated Master Password reset procedure to eliminate adversaries’ abilities to leverage a compromised Master Password for malicious access (To request access to the free tool, fill this form)
Recapping LastPass’s Announcement: What Data Do Adversaries Have and What’s the Risk?
Per LastPass’s website, ‘The threat actor was also able to copy a backup of customer vault data from the encrypted storage container which is stored in a proprietary binary format that contains both unencrypted data, such as website URLs, as well as fully-encrypted sensitive fields such as website usernames and passwords, secure notes, and form-filled data.’
The derived risk is that ‘the threat actor may attempt to use brute force to guess your master password and decrypt the copies of vault data they took. Because of the hashing and encryption methods we use to protect our customers, it would be extremely difficult to attempt to brute force guess master passwords for those customers who follow our password best practices.’
images from Hacker News