Back in March 2016, we reported that version 2.90 of the Transmission BitTorrent client had been hacked to include the KeRanger ransomware. Though Transmission’s developers acted quickly to solve that problem, it has happened again. For less than 24 hours between August 28th and 29th, the distribution copy of Transmission 2.92 was infected with the OSX/Keydnap malware, so if you downloaded Transmission during that time, your Mac might be infected. Transmission’s developers once again resolved the problem quickly and posted instructions for eliminating OSX/Keydnap from an infected Mac, but anyone contemplating using Transmission should keep this risk in mind. Note too that several studies have identified a significant percentage of BitTorrent downloads as containing malware — stick to the well-lit parts of the Internet if you’re concerned about safety.
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