On June 8th, the Blizzard servers were hit with a massive DDoS attack. The DDoS attack kept Overwatch, World of Warcraft and other Battle.net players from being able to access their accounts and play their favorite games. If you don’t know, a DDoS attack is essentially a ton of devices pinging servers over and over again causing them to crash and freeze up.
Blizzard said they were aware of the issue approximately 20 minutes after the attacks started. After some time, the servers came back online and things were up and running within an hour. Today, June 9th Blizzard acknowledged the attack in a Tweet:
The DDOS attacks against network providers that we were monitoring have ended. If you are still unable to log in try https://t.co/0WeaNolu3V
— BlizzardCS (@BlizzardCS) July 9, 2018
However, even after the attack has ended many players are still having problems logging back in. The solution to login problems being given out to Battle.net users is linked below: Blizzard Login Not Working June 2018