Blizzard DDoS attack: WoW Classic servers were down, Blizzard twitter confirms Blizzard servers hit with DDoS attacks, forcing World Of Warcraft Classic players offline September 8, 2019 https://www.dailystar.co.uk/tech/gaming/blizzard-ddos-attack-wow-classic-19877538
The Person Who Brought Down ‘World Of Warcraft’ Classic Has Been Arrested... "Immediately after the Distributed Denial of Service attacks against our game service began, the Blizzard Security Team worked around the clock with local and international law enforcement agencies to track down the source of the DDoS. It is our understanding that, within a few days, authorities were able to successfully identify and arrest a suspect." https://eu.forums.blizzard.com/en/wow/t/recent-ddos-attacks-impacting-game-service/83272/35