▶ 14.3 Email Security Problems
The ease of email forgery is not, by itself, a security problem. Remember that typewriters allow anyone to type another person’s name on a piece of paper. The problems arise when attackers exploit forgeries to defraud people or take advantage of open systems. In the world of email, there are four major security problems:
Connection-based attacks: Incidents in which someone sniffs or intercepts another’s email session. We can prevent this type of technical attack.
Spam: Unsolicited email, often—but not always—of a commercial nature. Spam often is used to distribute classic financial frauds.
Phishing: Email that tries to trick the reader into disclosing confidential identification data.
Email viruses: Email that ...
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