DEF CON<p>Hack-A-Sat 4 reg is open!</p><p>The satellite hacking contest to rule them all returns to DEF CON 31 for the 4th time. If you want to test your space-hacking skills, get your name on the list ASAP. Visit hackasat.com to register for the Hack-A-Sat 4 Quals, and follow @hack_a_sat for updates. <a href="https://defcon.social/tags/PracticeIsOver" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PracticeIsOver</span></a></p><p><a href="https://defcon.social/tags/defcon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>defcon</span></a> <a href="https://defcon.social/tags/defcon31" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>defcon31</span></a> <a href="https://defcon.social/tags/hackasat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hackasat</span></a> <a href="https://defcon.social/tags/satellitehacking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellitehacking</span></a></p>