Whisper Systems

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  • Info Whisper Systems is a company that has, in the past, produced security and privacy software for mobile phones. more...
  • Once the threat was recognized, at least one product was introduced by Whisper Systems to mitigate the risk.
  • Whisper Systems' TextSecure software was released as free and open source software about a month after the acquisition by Twitter.
  • Because some of Whisper Systems' software was open sourced by Twitter, it has been speculated that the acquisition was done mostly for talent acquisition purposes.
  • Shortly after the acquisition, Whisper Systems' RedPhone service was made unavailable, though it was later released as free and open source software in July 2012.
  • Following Whisper Systems' acquisition by Twitter, Twitter made some of Whisper Systems' software available under free and open-source licenses.
  • On 28 November 2011, Twitter announced that it had acquired Whisper Systems for an undisclosed amount.
  • In addition to launching TextSecure in May 2010, Whisper Systems produced RedPhone, an application that provides encrypted voice calls.