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Passive attack:

So in passive attack a hacker intrudes your system, and waits for some valuable information.

An example could be: A keylogger which sends the input given by the victim to a hacker via a network(LAN or internet whatever).

Active attack: In an active attack a hacker tries to get the valuable information by using his abilities rather than depending on the stupidity of the victim.

An example could be: Using Brute force to crack the password of a system.

Answered by: 21st Ninja GOD

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With passive security threats the attacker only reads the packages, but does not modify them (for example sniffing) Goal: obtain info that's being transmitted. with an active attack the attacker attempts to alter system resources or effect their operations. Involves modification of data streams / creation of a false stream.

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Q: Difference between active and passive threats?
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