When email was initially developed for the purpose of interoffice communication, the internet was in its infancy and no one had any idea how big it would get.

The original iteration of email was never built to be used by the masses and it was not made to be secure. These factors have led to some serious problems with things like spam and phishing emails over the years.

Learn more about the history of spam and how it turned into phishing with this infographic.

Infographic courtesy NowSourcing