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Security: man-in-the-middle attacks

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man-in-the-middle attacks

In a man-in-the-middle attack (or eavesdropping attack), the attacker intercepts network transmissions between two hosts. The attacker then masquerades as one of the hosts, often inserting additional transmissions into the network dialogue.

defense

Encryption is the best defense against man-in-the-middle attacks.

Strong encryption authentication helps prevent man-in-the-middle attacks. For example, using ssh instead of telnet.

Session checksums and shared secrets (such as cookies) are useful defense against man-in-the-middle attacks in web interfaces.

File encryption also helps defend against man-in-the-middle attacks. Utilities such as PGP or Entrust are useful for this purpose.

common attacks

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OSdata.com is used in more than 300 colleges and universities around the world

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