Brakeman assigns each warning a confidence level. This rating is intended to indicate how certain Brakeman is that the given warning is a real problem.

The following guidelines are used:

• High - Either this is a simple warning or user input is very likely being used in unsafe ways.
• Medium - This generally indicates an unsafe use of a variable, but the variable may or may not be user input.
• Weak - Typically means user input was indirectly used in a potentially unsafe manner.

However, Brakeman can easily guess wrong, so it is best to read through all warnings and assess their importance manually.