In November 2022, the password manager service LastPass disclosed a breach in which hackers stole password vaults containing both encrypted and plaintext data for more than 25 million users. Since then, a steady trickle of six-figure cryptocurrency heists targeting security-conscious…
Cloud based systems can be perfectly sound. You can read how other managers do it, which are also audited by security experts. It’s just LastPass being bad.
And sure, local can be more secure, but you’re then at higher risk of losing access to it, should the worst happen.
They are a real treasure trove though. Those crypto token thefts show there’s much money in that. I wouldn’t bet my most sensitive data they covered every single attack vector - external or internal. You managing your password locally may be much less secure but it’s also much less likely you’re directly targeted.