Yep, I'm in the unlucky half. It's good practice anyway, but now I keep my credit frozen at all three credit bureaus unless I'm submitting an application. Doesn't stop all fraud, but stops most of the kind that can fuck up my credit.
Fuck, I've never even heard of those. This whole system is garbage, how am I supposed to know how to protect myself from fraud when these companies just somehow automatically have authority to let thieves steal my identity? At the very least we should have a centralized government agency that you can issue a blanket freeze with. Better would be an actual proper ID system.