A SSIS Package Execution Error
Got this when scheduling a SSIS package via SQL Server Agent
Description: Failed to decrypt protected XML node “DTS:Password” with error 0x8009000B “Key not valid for use in specified state.”
The developer had a saved the package with a stricter security level.
I solved by changing the ProtectionLevel property to DontSaveSensitive
(The solution was using SSIS Package configuration files)