Earlier this month, Nintendo Japan announced that some users have seen unauthorized connections. Those who illegally logged into accounts used them to make fraudulent purchases. The increase in unauthorized connections may have been caused by increased use of Nintendo, as many are under home order.
The problem has not only affected Japan. Players around the world have seen unauthorized connections. In the past few weeks, players have reported seeing unauthorized connections. These users used Nintendo accounts to purchase Fortnite currency.
Nintendo Japan recently posted a situation update on its support website. Nintendo Japan stated that these connections were obtained outside of the service. The number of accounts concerned is approximately 160,000.Nintendo Accounts See Rise In Unauthorized Logins Since Early April And Suggest Additional Security Steps
Nintendo accounts are required to use Nintendo Switch Online and the My Nintendo store. Some players already had accounts on WiiU and 3DS, which used a network ID. These accounts can be linked, and those who use multiple Nintendo services in Japan have seen an increase in attacks.
This problem was particularly the case for those who did not protect their accounts with two-factor authentication or using the same information, such as emails and passwords, for both services. Some users may have used the same account information for linked payment accounts, such as PayPal.