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hash buster

[ hash-buhs-ter ]
/ ˈhæʃ ˌbʌs tər /
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noun

Computers. a program that generates unique strings of text within a spam email, designed to fool a spam filter and appearing randomly as the email’s subject, sender, or message: All that spam in your inbox may be due to hash busters.

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Origin of hash buster

First recorded in 2000–05; hash1 (in the sense “in computers, a single number representing a message”) + buster
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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