Nintendo is notoriously strict when it comes to pirated software, but a recent incident has raised concerns on how it handles potential cases. A Switch 2 owner, known as dmanthey on Reddit, reported that they were temporarily banned from online services after installing updates for used game cards purchased through Facebook Marketplace.
In the post, they stated that they inserted several pre-owned cartridges into their console to download patches, and were later banned from accessing online features the next day. Upon contacting Nintendo support and providing proof of purchase, the ban was lifted, and dmanthey described the unbanning process as “painless and fluid.” While the situation was resolved quickly, it highlights how Nintendo’s anti-piracy systems can unintentionally affect legitimate customers.
Each Switch game card carries a unique identifier, and if that identifier appears more than once online due to suspected piracy, Nintendo will automatically flag the account. Even though the physical card may be legitimate, its data could already be circulating illegally, triggering a false positive.

According to dmanthey, Nintendo support confirmed the cartridges were valid and could still be resold, suggesting the ban was based solely on duplication detection rather than a flaw in the games themselves. Still, the incident highlights the potential risks of buying second-hand games from unofficial sources, where buyers may unknowingly inherit someone else’s ban-worthy history.
(Source: Reddit)