Those that decide to hack their systems know that there's always the chance of either bricking, or banning. Many of those that installed CFW or installed unauthorized software onto their Nintendo 3DS systems faced an online ban, back in 2017. With exploits and modchips becoming the talk of the town, and the Switch scene progress in general, there's the growing question of "what about bans?". It began with known Switch hacker Shiny Quagsire finding out that their Switch had been banned. That alone is shocking, but not only was one of their systems banned, but two. They received error code 2124-4007 on their alleged non-hacked Nintendo Switch. Huh, 2124-4007 on my not-hacked Switch. Wonder what that's about.— Shiny Quagsire (@ShinyQuagsire) May 19, 2018 The screen suggests users to contact Nintendo Support with the error code, which the user in question did. Below, are two alleged chat sessions regarding the error code. One of the responses was that the ban would not be lifted, and that the End User License Agreement had been broken. This error code prevents those from accessing the eShop, online gaming, or the friend list and social aspects. Updating or patching one's game still functions, however. Banned unit count is at 2, current suspicion: libnx errors getting reported.— Shiny Quagsire (@ShinyQuagsire) May 19, 2018 ShinyQuagsire then attempted to play Splatoon 2, and successfully voted for a team during the Splatfest, but trying to play a match brought back the same error code once more, stating that online features were restricted by Nintendo. It was then revealed that the "unhacked" Switch had once run the Homebrew Launcher, as well as PegaSwitch, the latter of which is an exploit toolkit that can write custom code to the system. only correlation between my banned unit and the other in our group is libnx error codes being in the settings log, never did crazy save edits/cheating/weird online stuff, both had client certs dumped but I don't think it's that, they're not rejected— Shiny Quagsire (@ShinyQuagsire) May 19, 2018 Later, another Switch hacker, SciresM also spoke up about his own console getting banned. CDN was cited as a potential cause, though ShinyQuagsire wasn't so sure, as the last time they'd done anything regarding that was months ago, meaning Nintendo could have retroactively banned them, or is only going after them now. This is the console cert I've been using for *all* CDN exploration since June of last year. I'm not surprised in the slightest, tons and tons of invalid requests have been sent from this one. I also updated the console to 5.0.1 when that released.— Michael (@SciresM) May 22, 2018 CDN, "Content Distribution Network", as described by Nintendo themselves is CDN downloaders had been used to download content directly to a computer from Nintendo services, and currently, this is what is considered to have most likely caused the bans at this time. Shiny Quagsire also knows another user who had a Switch banned, which never used the Homebrew Launcher, but did access and mess with the CDN. At this time, only Switch hackers appear to have been affected, not the average user. If more information becomes available, this post will be updated to include such.