These appear to be the main previous threads:

See what is unencrypted in your LastPass vault - https://news.ycombinator.com/item?id=34105368 - Dec 2022 (9 comments)

LastPass breach is worse than you think because URLs were unencrypted - https://news.ycombinator.com/item?id=34102982 - Dec 2022 (81 comments)

LastPass users: Your info and vault data is now in hackers’ hands - https://news.ycombinator.com/item?id=34100087 - Dec 2022 (19 comments)

LastPass says hackers stole customers' password vaults - https://news.ycombinator.com/item?id=34099647 - Dec 2022 (15 comments)

LastPass user vaults stolen in recent hack - https://news.ycombinator.com/item?id=34097142 - Dec 2022 (276 comments)

Lastpass Security Incident - https://news.ycombinator.com/item?id=33806803 - Nov 2022 (560 comments)

LastPass confirms hackers had access to internal systems for several days - https://news.ycombinator.com/item?id=32912350 - Sept 2022 (21 comments)

LastPass says hackers had internal access for four days - https://news.ycombinator.com/item?id=32871051 - Sept 2022 (7 comments)

Last Pass Hacked - https://news.ycombinator.com/item?id=32612645 - Aug 2022 (35 comments)

LastPass: Notice of Security Incident - https://news.ycombinator.com/item?id=32598587 - Aug 2022 (130 comments)