All Dark Souls servers are currently deactivated after a discovered vulnerability in the online service. Bandai Namco decided to shut down all servers of Dark Souls 2, 3 and Remastered after “recent reports of an issue with online servers”.
While Bandai Namco had not specifically said what the issues are we have seen a lot op post on the subreddit that indicated that it has something to do with RCE, Remote Code Execution. This enables others to run code on your pc through the Dark Souls Servers. Thus making you vulnerable to hacks.
“PvP servers for Dark Souls 3, Dark Souls 2, and Dark Souls: Remastered have been temporarily deactivated to allow the team to investigate recent reports of an issue with online services,” a brief notice on series’ official social media channels stated earlier today. “Servers for Dark Souls: PtDE will join them shortly. We apologize for this inconvenience.”
When the servers will be back online is unknown. We will update this post as soon as more information is available