Risk verdicts are based on a combination of those factors. The engines not only scan message content, headers, and links, but also check the reputation of the sender and any linked websites.
Why ESP-based phishing worksĬompanies that are serious about e-mail threats thoroughly scan all e-mail - with antivirus, antiphishing, and antispam engines - before letting messages reach users’ inboxes. According to statistics we’ve obtained from our solutions, the method is gaining momentum. Another scheme with a high success rate for delivering phishing links to targets is to use e-mail marketing services, also known as e-mail service providers (ESPs) - companies that specialize in delivering e-mail newsletters - to send messages. Scammers have used various tricks over the years to bypass antiphishing technologies.