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What is MIC?

Resolution

Message Integrity Check (MIC) prevents attacks on encrypted packets called bit-flip attacks. During a bit-flip attack, an intruder intercepts an encrypted message, alters it slightly, and retransmits it, and the receiver accepts the retransmitted message as legitimate.

The MIC, implemented on both the Access Point (AP) and all associated client devices, adds a few bytes to each packet to make the packets tamper proof.

Problem Type

Definitions

Security Options

MIC

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