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Investigations Inc.: Cyber Espionage
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10 Ways Companies Get Hacked

Malicious software, called malware, can also get onto a computer through a USB key.

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USB Key Malware

Malware can also get onto a computer through a USB key. For instance, someone can slide infected USB keys into packets given out at a conference, Alperovitch said. Once the unsuspecting person plugs the key into his or her machine, malware is installed. It can also be surreptitiously inserted into a computer by a spy on the inside of a company.

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