The challenges of URL protection
Phishing attacks are growing at a record rate, and cybercriminals are more adept at tricking their victims. About 200,000 new URLs are created each day; it is estimated about 70% are malicious. Attackers often use links in emails to bring unsuspecting users to these phishing sites or in some cases to initiate the downloading of malicious files, such as ransomware, directly to their computer.
Email security systems that only inspect URLs during the initial delivery are easily bypassed by attackers by using a benign site that only later changes to a malicious one. Furthermore, individuals are clicking these links from many different types of endpoints, thus endpoint-based email security controls are generally ineffective in protecting organizations from URL-based email-borne attacks.