The Kryterion Certified Online Proctors (KCOPs) are trained to watch and listen for any unusual behaviors from the test taker. For example, unusual eye movements, removing oneself from the field of vision and making atypical noises are all noted and a behavior alert is sent to the test taker, depending on the business rules you set. The test taker is required to acknowledge the alert before continuing with the test and the KCOP resumes or stops the testing process, depending on the action you'd like us to take.