What concept does the "T" represent in the STRIDE threat model? 

Answer options:

A. TLS
B. Testing
C. Tampering with data
D. Transport

C

Explanation - Any application that sends data to the user will face the potential that the user could manipulate or alter the data, whether it resides in cookies, GET or POST commands, or headers, or manipulates client-side validations. If the user receives data from the application, it is crucial that the application validate and verify any data that is received back from the user.