Despite the numerous messaging apps available, email remains the most used method of formal communication. This is because email is still associated with professionalism. However, as emails are preferred among businesses, this also makes them an ideal target for cybercriminals.
Most data breaches occur for an economic reason—the attacker hopes to profit from the information they gain access to. Emails contain a lot of personal information already and can also be used to access other vital systems. This makes them an ideal entry point for hackers with varying motives.