Summary: <p>Leo and Steve discuss last week's major attack on DNS, answering the question of whether the Internet is still working?, we look at Linux's worrisome "Dirty COW" bug rediscovered in the kernel after nine years, we address the worrisome average lifetime of Linux bugs, share a bit of errata and miscellany, and offer an in-depth analysis of DRAMMER, the new, largely unpatachable, Android mobile device Rowhammer 30-second exploit.</p><p>We invite you to read our <a href="https://www.grc.com/sn/SN-583-Notes.pdf">show notes</a>.</p> <p><strong>Hosts:</strong> <a href="https://twit.tv/people/steve-gibson">Steve Gibson</a> and <a href="https://twit.tv/people/leo-laporte">Leo Laporte</a></p> <p>Download or subscribe to this show at <a href="https://twit.tv/shows/security-now">https://twit.tv/shows/security-now</a>.</p><p>You can submit a question to Security Now! at the <a href="http://grc.com/feedback.htm" target="_blank">GRC Feedback Page</a>.</p><p>For 16kbps versions, transcripts, and notes (including fixes), visit Steve's site: <a href="http://grc.com/securitynow.htm" target="_blank">grc.com</a>, also the home of the best disk maintenance and recovery utility ever written <a href="http://spinrite.info/" target="_blank">Spinrite 6</a>.</p><p>Bandwidth for Security Now is provided by <a href="https://www.cachefly.com/" target="_blank">CacheFly</a>.</p>
