Leaked Manual Reveals How CIA Can Track Windows Users by Gauging Wi-Fi Signal

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On Wednesday, WikiLeaks released the latest issue in its ongoing Vault 7 series—a trove of secret or otherwise classified US Central Intelligence Agency files from 2013 to 2016 describing previously undisclosed malware and viruses.

Today’s release includes documentation on “ELSA,” a purported CIA project for tracking human targets carrying wi-fi-enabled devices. The malware involved in this project is specifically for devices running Microsoft Windows.


As with the rest of the Vault 7 material, the 42-page “ELSA” manual
was allegedly stolen from the agency’s Center for Cyber Intelligence in Langley, Virginia. The method “ELSA” supposedly employs to determine a Windows user’s location is pretty ingenious, though not an entirely new idea.

The first step involves injecting the target’s laptop with geo-location malware. Once installed, the malware begins scanning for

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