You lose access to every legitimate game you purchased. Support will not help you. The Terms of Service explicitly forbid using unauthorized key generators.
Key generators are not legitimate tools and pose significant risks to your digital security. Ubisoft Activation Key Generator
: Sometimes simply closing Ubisoft Connect completely from the system tray and relaunching the game from Steam fixes the "key request" prompt. You lose access to every legitimate game you purchased
: Most "key generators" require you to download executable files that often contain trojans, spyware, or ransomware Account Phishing or ransomware Account Phishing