> was able to gain access to certain elements of our customers’ information This is frustratingly vague. This incident started 4 months ago, and you can't provide any details? If it wasn't such a PITA to move off LastPass, I would do so. They got me.
How is it a PITA to move off lastpass? I switched to Bitwarden and it was a piece of cake. Exported all passwords. Imported all passwords. Pretty much all password managers can import/export as a CSV or similar.
Since I don't feel 100% comfortable having my self hosted things on a public IP, I put it only on my LAN. For remote access (e.g. phone) I use wireguard.