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Experts Fear Crooks are Cracking Keys Stolen in LastPass Breach
(krebsonsecurity.com)
This is a most excellent place for technology news and articles.
Password vaults are great! Giving them to a central authority is... a little risky though. LP has a pretty decent history other than this, so I don't fault anyone for using them. But after that breach, it's probably good to consider those creds burned and recycle them.
A good self-hosted alternative might be something like Keepass on Syncthing. Though a downside of that is that you might be even less likely to know of a vault exfil than a service like LP.
Either way you go, it's good to recognize the limiations and act accordingly.