Two different security companies were tasked by Bitwarden to "reinforce Bitwarden security and help customers comply with enterprise security requirements".
Bitwarden added support for Argon2 KDF recently to its products and also passwordless web vault logins.
Cure53 found no critical or important issues during the analysis of Bitwarden's network and infrastructure.
The security researchers did find four issues; two of them received a low security threat rating, the other two an informational rating only.
Cure53 concluded that Bitwarden "exhibits a strong security foundation with zero exploitable
vulnerabilities found"
Three of the four issues that the security researchers discovered during the audit have been addressed, the fourth is under investigation