XIGNCODE3 uses several layers of protection to identify memory editors: Signature Scanning

In some cases, community members create a "stub" or a fake version of the x3.xem or xhunter1.sys files. This tricks the game into thinking the anti-cheat is active and healthy, while in reality, it is doing nothing. The Risks Involved

Why it fails: Xigncode3 also scans kernel callbacks and can detect user-mode hooks via integrity checks (comparing hooked function bytes to original DLL bytes on disk). Many games using Xigncode3 also have server-side heuristics—if the anti-cheat can't see Cheat Engine but server telemetry shows impossible input, you still get banned.

: To modify a game, Cheat Engine must attach itself to the game's process. XignCode3 monitors the "OpenProcess" API call and will immediately terminate the game if an unauthorized debugger is detected.