Keygens are the #1 delivery method for malware. Because antivirus programs naturally flag keygens as "HackTools" or "PUPs" (Potentially Unwanted Programs), users often disable their security to run the file. This leaves the door wide open for ransomware or spyware.
Tolerance data, on the other hand, refers to the specifications and parameters that define the acceptable range of variations in software licensing and activation. This data can include information on allowed discrepancies in dates, serial numbers, and other relevant details. Keygen Tolerance Data 2009.2.rar