Nintendo UK has given an update as regards to a number of incidents where people have experienced their Nintendo accounts being hacked, after finding unauthorized payments being made on their accounts. Nintendo state that they are still investigating the incidents and express that there has not been a breach in their databases, servers or services.
As a precaution, the Nintendo Network ID can no longer be used to sign in to Nintendo Account. Other methods like Facebook or Google sign in can still be used. Nintendo UK also emphasize Nintendo Account users to enable two-step verification to further secure their accounts.
We would like to provide an update on the recent incidents of unauthorised access to some Nintendo Accounts.
While we continue to investigate, we would like to reassure users that there is currently no evidence pointing towards a breach of Nintendo’s databases, servers or services. As one action in our ongoing investigation, we are discontinuing the ability to use a Nintendo Network ID to sign in to a Nintendo Account. All other options to sign-in to a Nintendo Account remain available.
As a further precaution, we will soon contact users about resetting passwords for Nintendo Network IDs and Nintendo Accounts that we have reason to believe were accessed without authorisation.
In addition, we also continue to strongly encourage users to enable two-step verification for their Nintendo Account as instructed here: How to set-up two-step verification for a Nintendo Account.
If any users become aware of unauthorised activity, we encourage them to take the steps outlined in the article about the Nintendo Account recovery process.
During the investigation, in order to deter further attempts of unauthorised sign-ins, we will not reveal more information about the methods employed to gain unauthorised access.
We apologise for the inconvenience and concerns caused to our customers, and we will continue working hard to safeguard the security of our users’ data.
*The Nintendo Network ID is used to identify users and make purchases on 3DS and Wii U. It could also be connected to Nintendo Account as a sign in alternative and to transfer funds between eShops.
Source: Nintendo UK Support