A post on the Lost Ark Forums announces a ban wave in Lost Ark to take on the scourge of bots populating the MMORPG. This was a massive undertaking, eliminating over one million accounts. The good news is this should reduce the game's queue times. The bad news is, some legitimate accounts may have been caught up in this action, so there are instructions on what to do if your account was banned but you can pass a Turing Test:

Following launch, botting has been a growing issue for Lost Ark. Our team has been hard at work on crafting effective tools and methods to identify and remove bots from the game. As the result of this work, today (3/4) we will be permanently removing over a million illegitimate accounts from the game that have been determined to be running bots.

In this massive ban wave, it is possible that a small number of players may be erroneously identified as bots. We have taken every step possible to prevent that from being the case, but it is possible that edge cases could occur. For any impacted players who were earnestly playing Lost Ark, and not modifying their gameplay in any way, you should appeal a ban by submitting a ticket to our support site.

Maintaining a fair and fun gameplay experience for our players is a top priority for the team. While we intend to make a massive impact with this ban wave, we know that there is more work to be done and want players to know that this is only one step in what will be an active and ongoing process. Looking ahead, we will continue our work on detecting and removing botting, cheating, and harmful behavior from Lost Ark at scale, which includes expanding our anti-cheat tools, improving bot identification methods, and rolling out more ban waves as frequently as is necessary.

Thank you for your reports, your patience, and your ongoing support.

The Lost Ark Team