in this attack, an adversary tricks a victim into reinstalling an already-in-use key. This is achieved by manipulating and replaying cryptographic handshake messages. When the victim reinstall the…

Question

Options

• AChop chop attack
• BKRACK
• CEvil twin
• DWardriving

• A
  2% (1)
• B
  86% (50)
• C
  9% (5)
• D
  3% (2)

Explanation

KRACK (Key Reinstallation Attack) is correct because it precisely describes the attack where an adversary manipulates and replays cryptographic handshake messages (specifically the WPA2 four-way handshake) to force a victim to reinstall an already-in-use encryption key, resetting nonces and replay counters to their initial values - allowing the attacker to decrypt, replay, or forge packets.

Why the distractors are wrong:

• Chop Chop is a legacy WEP attack that exploits weaknesses to decrypt packets one byte at a time - it doesn't involve key reinstallation.
• Evil Twin is a rogue access point attack where an attacker mimics a legitimate Wi-Fi network to intercept traffic - no handshake manipulation or key reinstallation is involved.
• Wardriving is simply the practice of driving around to discover and map Wi-Fi networks - it's reconnaissance, not an active cryptographic attack.

Memory Tip: Think of KRACK as literally "cracking" a key by forcing it to be re-installed - the "K" stands for Key and the "R" stands for Reinstallation, making the acronym itself a built-in reminder of exactly what the attack does.

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