Second, the hackers will likely be able to gain access to a small number of websites which put sensitive info in the URL. First of all, the hackers now have a full list of websites that you have accounts for. While usernames, passwords, and “secure notes” are encrypted, a lot can be inferred from the unencrypted info. The most damning revelation of this latest LastPass hack is that not everything in your “LastPass vault” is encrypted, including websites, URLs, and all timestamps. Tags: breaches, cloud computing, data breaches, Password Safe, passwords Its main downside is that you can’t synch between devices, but that’s because I don’t use the cloud for anything.ĮDITED TO ADD: People choose lousy master passwords. If you’re changing password managers, look at my own Password Safe. But this should serve as a cautionary tale for anyone who is using the cloud: the cloud is another name for “someone else’s computer,” and you need to understand how much or how little you trust that computer. (Or that “16 character password using all character types” is something like guess is that we’ll learn more during the coming days. If that’s true, it means that LastPass has some backdoor-possibly unintentional-into the password databases that the hackers are accessing. Their seeds were kept, encrypted, in my lastpass vault, behind a 16 character password using all character types. On Sunday the 18th, four of my wallets were compromised. I think the situation at may be worse than they are letting on. But, even so, note this unverified tweet: My guess is that many LastPass users do not have strong master passwords, even though the compromise of your encrypted password file should be part of your threat model. (That they lost customer data is another story….)įair enough, as far as it goes. That is, you are secure as long as your password is resilient to a brute-force attack. So, according to the company, if you chose a strong master password-here’s my advice on how to do it-your passwords are safe. As a reminder, the master password is never known to LastPass and is not stored or maintained by LastPass. These encrypted fields remain secured with 256-bit AES encryption and can only be decrypted with a unique encryption key derived from each user’s master password using our Zero Knowledge architecture. 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. To date, we have determined that once the cloud storage access key and dual storage container decryption keys were obtained, the threat actor copied information from backup that contained basic customer account information and related metadata including company names, end-user names, billing addresses, email addresses, telephone numbers, and the IP addresses from which customers were accessing the LastPass service. While no customer data was accessed during the August 2022 incident, some source code and technical information were stolen from our development environment and used to target another employee, obtaining credentials and keys which were used to access and decrypt some storage volumes within the cloud-based storage service. Last August, LastPass reported a security breach, saying that no customer information-or passwords-were compromised.
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