In order to appear for the CHFI certification exam, candidates can follow any one of the below routes: Attend an official CHFI training – Candidates will be eligible to appear for the CHFI certification exam once they complete the EC-Council-authorized CHFI training program from an authorized training center (ATC) like Vinsys. OR Without attending an official CHFO training – Those who do not enroll for an official training, must possess 2+ years of information security work experience and are required to pay $100 non-refundable application fee.