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- DictionaryDic·tion·ar·y at·tack
noun
- 1. an attempted illegal entry to a computer system that uses a dictionary headword list to generate possible passwords.
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- Dictionary attack
Technique for defeating a cipher or authentication mechanism by trying to determine its decryption key or passphrase by trying hundreds or sometimes millions of likely possibilities, such as words in a dictionary
In cryptanalysis and computer security, a dictionary attack is an attack using a restricted subset of a keyspace to defeat a cipher or authentication mechanism by trying to determine its decryption key or passphrase, sometimes trying thousands or millions of likely possibilities often obtained from lists of past security breaches. Wikipedia
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