The PvP servers for Dark Souls: Remastered, Dark Souls 2, and Dark Souls 3 have all been temporarily turned off. This follows reports of a possible exploit in Dark Souls' PC versions, allowing codes to be run on the owners' PC which can eventually take control of it.
As per VGC, Dark Souls announced their move on Twitter, stating that all the PVP servers "have been temporarily deactivated to allow the team to investigate recent reports of an issue with online services."
Though they did not specify the particular issue, it's pretty clear that it was because of this worrying exploit.
Dark Souls Disables PVP Servers Following Reports Of PC-Controlling Exploit
The exploit was seemingly discovered by fans of the games before being reported to the teams at FromSoftware.
"It is possible for Dark Souls 3 invaders to run code on your PC without permission. AKA RCE, Remote Code Execution. This same hack is possible in Elden Ring," Redditor's noted.
However, when fans were unable to get a response from the devs, the "hackers" then decided to perform the exploit on a livestream with other players to prove that it works.
One stream by The__Grim__Sleeper proved the exploit worked and seemingly did enough to get the attention of FromSoft or Bandai Namco; at least to the point that PvP servers were taken offline at the weekend.
At the time of writing, there is no confirmation of when the PvP servers will be switched back on.