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In order to mount a brute-force or dictionary based WPA password cracking attack on a Wi‑Fi user with WPA or WPA2 enabled, a hacker must first sniff the WPA 4-way handshake.
Laws regarding "unauthorized access of a computer network" exist in many legal codes, though the wording and meaning differs from one to the next.However, the interpretation of terms like "access" and "authorization" is not clear, and there is no general agreement on whether piggybacking (intentional access of an open Wi-Fi network without harmful intent) falls under this classification. [1]
Chaosreader is a simplified version of many open-source eavesdropping tools. [3] It creates HTML pages on the content of when a network intrusion is detected. [ 3 ] No actions are taken when an attack occurs and only information such as time, network location on which system or wall the user is trying to attack will be recorded.
In cryptanalysis and computer security, password cracking is the process of guessing passwords [1] protecting a computer system.A common approach (brute-force attack) is to repeatedly try guesses for the password and to check them against an available cryptographic hash of the password. [2]
The Wi-Fi Alliance intended WPA as an intermediate measure to take the place of WEP pending the availability of the full IEEE 802.11i standard. WPA could be implemented through firmware upgrades on wireless network interface cards designed for WEP that began shipping as far back as 1999.
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Many such locations provide wireless Internet access as a free or paid-for courtesy to their patrons or simply to draw people to the area. [1] Others near the premises may be able to gain access. Piggybacking is distinct from wardriving , which involves only the logging or mapping of the existence of access points.