In Pet Simulator X , "Anti-Steal" often refers to features or habits that stop hackers from taking your pets via exploits.
Some developers use obfuscation (making code unreadable) or "anti-copy" scripts. However, these are often considered "security through obscurity" and can sometimes be bypassed by determined exploiters. For Players: Preventing Pet Theft Pet Simulator X - Anti Steal Download
Some scammers use scripts to lag the game during a trade, making it impossible for you to click "Unaccept" before they remove their pets. In Pet Simulator X , "Anti-Steal" often refers