The thing about this one is no one seems sure of the source (it appears to be from multiple sources, including infostealer malware and phishing attacks), so you don’t know which passwords to change. To be safe you’d have to do all of them.
Some password managers (e.g. Bitwarden) offer an automatic check for whether your actual passwords have been seen in these hack databases, which is a bit more practical than changing hundreds of passwords just in case.
And of course don’t reuse passwords. If you have access to an email masking service you can not only use a different password for every site, but also a different email address. Then hackers can’t even easily connect that it’s your account on different sites.


















I’d use a Kill-a-Watt or similar to check how much power it uses, before deciding whether it’s worth installing anything on it. Also check how much noise it makes, unless you have a separate room for servers. Enterprise servers aren’t always a good fit for home use.