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Definition of keylogger
: a piece of software that records the signals sent from a keyboard to a computer usually for the purpose of gaining information about the user without the user's knowledge Malware works most commonly by installing a keylogger or some other form of spyware that watches what you type or see. — Mat Honan
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Recent Examples of keylogger from the Web
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There is no evidence that this keylogger has been intentionally implemented.
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To thwart early forms of encrypted communications, the feds came up with keylogger software that needed to be installed manually on a target's computer.
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That raises the possibility, at least, that secret data may have been captured by the keylogger, and then transmitted over the public internet to someone outside the military chain of command.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'keylogger'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of keylogger
1993
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