In recent of Lastpass breach, their stated in the PDF that their kept their backups for up to 3 months, which mean If you delete your account your vault will still be in their system for maximum of 3-4 months.
But I can’t find smilar document of how long or how many does Bitwarden kept backups, there are Reddit thread recently but comments are saying “assuming backup are forever” which didn’t help.
Exactly my rationale for leaving LastPass and my experience with Bitwarden, so far. In fact, I am preferring Bitwarden for a number of reasons including a saved login file can also contain 2FA code and attachments and the desktop, extension, and iOS apps are cleaner and better designed.
That’s their policy. I wouldn’t assume they were enforcing it. LastPass seems like a bit of a mess now. Only third party published audits should be relied on to confirm if they were adhering to their own backup schedule.
Bitwarden’s backup policy and their published audits should confirm their practice. They have a Network Security audit posted for every year the last few years.