Respawn and EA have postponed the North American Finals in the wake of the “competitive integrity” of the game being compromised. This involved a wild situation where someone was giving the pros hacks like aimbots and wallhacks as they were playing in the Finals event, effectively ruining the entire thing without anyone actually attempting to cheat. Here's what that looked like (warning: language):
This has led to a mass of complaints about Apex's anti-cheat systems, which clearly failed in a massive way for this situation. But it also speaks to just how advanced cheats have become as this is a private lobby for pros playing in an esports final.
Not that this is necessarily related, but Respawn was just hit days ago with 23 layoffs including Apex Legends developers, some of whom were longtime veterans. Though if anything, this shows that EA needs to beef up Apex's security team to some extent as something like this requires all hands, or more hands, on deck than they currently have now, it seems.
Should have learned to code better 
Easy Anti-Cheat's response- It wasn't me
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Apex runs on Source?
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Any game ever made with good movement ties back to source
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Heavily modified Source apparently
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Everything goes back to Quake and Carmack (except unreal stuff).
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They recycled the engine from Titanfall 2.
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