Not that I'm fully versed in such things, but afaik the first and most effective thing you can do is freeze (?) your accounts so that no new ones can be opened. That prevents a lot of big issues.
Might want to open a new bank account first though and divert your paycheck and savings there. You can have multiple bank accounts. Use the existing one for debit or something with smallish amounts of money in it.
It's much harder to move, change ssn, etc.