Such high-tech search tools, which the FBI calls “network investigative techniques,” have been used when authorities struggle to track suspects who are adept at covering their tracks online. The most powerful FBI surveillance software can covertly download files, photographs and stored e-mails, or even gather real-time images by activating cameras connected to computers, say court documents and people familiar with this technology.

via FBI’s search for ‘Mo,’ suspect in bomb threats, highlights use of malware for surveillance – The Washington Post.

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