I was just notified last week by one of my credit cards that my info (name, address,ssn) showed up on the dark web. I immediately logged into all 3 credit bureaus and froze my credit, and put a fraud alert on the first one I logged into. You only have to do one because they submit that info to the other bureaus immediately. I got notification from the other 2 the next day that they added the fraud notice.

Honestly though - it doesn't really worry me anymore. I was military for 10 years, and had a TS and a Q clearance for at least 15 (the Q was after I got out and worked at the NRC). OPM has been hacked many times, and they probably also had people sell the data to China as well. The only time it has ever hit me personally was when some a-hole used my info to buy 2 iPhones from T-Mobile about 8-10 years ago. I opened a police report, took it to T-Mobile, and they erased any stuff they had that was trying to charge me and opened an investigation to find who did it. It sucks, but I'm used to it after all the other times my info has been stolen.