I know I haven't posted one lately, but some might want a refresher, some might be new to it.
Use a password manager.
Most account compromises occur because a username/password combination was lifted off one breach and tried (successfully) on another site.
A pwd manager mitigates this because it can generate a unique password for each site and stores it so you don't have to remember hundreds of passwords: just 2. One for your computer, one for your pwd manager.
@0x56 Could even store it on USB.
W00t
@0x56
Yes.
Also, update all of your passwords after adding the old ones.
The one I went with isn't very good at changing the password for you so I went through one day and did all of mine. Took hours but it's worth doing.
Don't wait until you get the alert from @CoSoGuard.