Password managers' promise that they can't see your vaults isn't always true

Password managers, once seen as a secure way to store sensitive data, may not always live up to their "zero knowledge" encryption claims. Despite assurances from popular services like Bitwarden, Dashlane, and LastPass, new research reveals vulnerabilities that could allow malicious insiders or hackers to access user data and vaults. These risks are particularly evident when account recovery features are in place or when sharing vaults among users. The study highlights the importance of understanding the limitations of password managers and the potential for encryption weaknesses that could compromise user data.