Nintendo Account and NNID hacks confirmed by Nintendo - Polygon

Nintendo confirmed that up to 160,000 Nintendo Accounts and Nintendo Network IDs may have been accessed illegally by hackers. Users’ personal info may have been exposed and Fortnite V-Bucks may have been purchased with stored credit cards and PayPal logins.

Nintendo Switch - Wikipedia

How do I transfer my account from a broken 3DS?

Drowning, Nintendo Switch download software, Games

Is there a way to have Nintendo remotely remove a Nintendo Network

Nintendo 3DS - Wikipedia

Nintendo Will Remove Network ID Sign-In After Nintendo Switch Hack

160000 Nintendo Accounts Hacked: Change your Nintendo Network ID

Tutorial: How to register a Nintendo Network ID on Nintendo 3DS

The Nintendo 'Gigaleak' Incident

is now available for the Nintendo 3DS

Nintendo Switch - Wikipedia