Data forensics analysis can be applied at the end of a test to compare responses on the old and new questions, in the event a test taker had access to pre-knowledge about the exam. The data forensics analysis takes place immediately following the completion of the test and before a test score is given. Kryterion has implemented a number of data forensic solutions in its products, including:

• A lockdown of the system and browser to prevent copying and transferring items
• Real Time Data Forensics to detect very fast responses to questions
• 128-bit encryption/server protections
• One-item-at-a-time item presentation
• Item pooling
• Online monitoring using a webcam accompanied by real time intervention
• Item/option randomization