has confirmed that hackers have been accessing Nintendo Accounts, and pinned the problem down to a Nintendo Network ID login method.In a post on its Japanese website, Nintendo says that hackers were able to access user and password data for Nintendo Network IDs (NNID), then used that information to log in to Nintendo Accounts, and potentially make unauthorised purchases. The company estimates that around 160,000 NNIDs have potentially been affected.
NNIDs are an older form of login for Nintendo services, created for 3DS and Wii U. The Switch uses newer Nintendo Accounts, but legacy NNIDs can be used to log in. In response, Nintendo has abolished NNID logins for Nintendo Accounts, and NNIDs and Nintendo Accounts that look to have been compromised will see automatic password resets.After widespread reports about unathorised access to Nintendo Accounts this week, the company said it was investigating the issue, and asked users to enable two-factor authentication for their accounts.
The company now says that users who had the same password for both their NNID and Nintendo Account could have seen unauthorised payments on their account – if your purchase history includes payments you didn’t make, Nintendo says to request to cancel the purchase, and it will respond.
Nintendo explains that credit card information will not have been viewable for hackers, but warns that they could have had access to users’ nickname, date of birth, country / region, gender, and email address, attached to both NNIDs and linked Nintendo Accounts.
What remains unclear is exactly where the NNID login information has been obtained from. Nintendo’s statement mentions only that it was obtained “by some means other than our service” at the beginning of April. A separate statement from Nintendo UK explains that there is “currently no evidence pointing towards a breach of Nintendo’s databases, servers or services.”
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Joe Skrebels is IGN’s Executive Editor of News. Follow him on Twitter.