https://wccftech.com/nintendo-switch-hack-security-breach-160k-accounts-accessed/

Nintendo is on fire right now, busting records with their Animal Crossing: New Horizons and Switch sales, but success has a way of attracting bottom feeders and criminals and the company has admitted over 160,000 Nintendo Accounts have been accessed in a major privacy breach. A Nintendo Account is required in order to access online services or buy digital games on a Switch. If you’ve been hacked, private details, including your address and email, may have been exposed. Thankfully, credit card and PayPal data can’t be accessed just by logging into a Nintendo Account, although, hackers can and have used payment methods on file to buy things.

Most, if not all of the unauthorized logins happened through the Nintendo Network ID system (you can also log in to a Nintendo Account via Twitter, Facebook, and Google). The ability to log in with a NNID has now been shut off. In a statement, Nintendo claims their own databases and servers have not been compromised, meaning the hackers logged in using passwords and information gained elsewhere – so, in other words, if your Switch has been hacked, you’ve got a bigger security issue on your hands. Change all your passwords now.