What are the chances these emails were actually sent out in error, like Lastpass claims? It’s not in-plausible, but I also take it with a grain of salt.
To be fair to them, I don’t think we’ve seen any reports of folks password DBs actually being compromised. Just a lot of presumed failed attempts.
If the e-mails were sent in error, then it’s all much to do about nothing. If the master passwords were actually compromised, then the system still successfully protected the clients password assets.