Change your passport I guess.

You can't do anything besides the usual precautions. I get a notice of a data breach in the mail like every 3 weeks from companies who got hacked. It's fucking ridiculous. My social security number has probably been leaked like 900 times. All of ours has

All you can do is:

• change passwords
• use good passwords
• check your accounts frequently
• freeze your credit
• use 2FA with literally anything and everything
• try to limit the number of one off accounts you have to create (hard to do when every fucking thing requires a fucking account, i.e. PSN account to play fucking Sony SINGLE PLAYER GAMES on Steam)
• cross your fingers

Hey hey, you're an honorary American now! Your flag and genocide kit are in the mail (don't worry, we're pretty sure we got the right address from that darkweb database).

But for real there's not much you can do but keep an eye on it. If Europe has similar credit agencies to the ones in the US, then freeze your credit and keep it frozen until you need to apply for more (new card, car, house, etc).

Use a password manager so if an account gets compromised they can't get into anything else.

And, as advised, watch for unusual activity (but forever, not just a few months, that's just a false sense of security).

This should keep you largely safe. My data has been leaked in dozens of breaches, but I do the above, and while I've had two instances of card fraud, I don't see hard enquiries into my credit that I didn't make even after 6+ years.

Lord forbid they get the password used to protect the data that they stole!

You can't. Sorry.

If the datas are in the nature you can't regain it. If it's a real danger for you the best you should do is try to invade your name address and everything with a lot of false infos. This will not resolve the spam problem but might save your life literally in others cases

First of all: Sorry to hear that, this sucks!

Regarding your digital information: I'd suggest you to get a new email and gradually replace the old one in your accounts to avoid spam. Even though they claim your password wasn't stolen, I'd highly suggest you to change your passwords anyway, just in case. Also, as they say, be very careful about potential phishing attacks.

As for your personal information such as your address: I'm afraid there's not much you can do. I'd argue, however, that it's not as valuable to potential hackers. One potential scam involving stolen addresses is sending purchases made with a stolen credit card to your address and asking you to forward it. Don't accept deliveries you didn't expect for this reason (depending on your local law it may lead to criminal charges against you, even though you're still technically the victim of a scam).