DiscoverTotal Leo (Video)Security Now 1049: DNS Cache Poisoning Returns
Security Now 1049: DNS Cache Poisoning Returns

Security Now 1049: DNS Cache Poisoning Returns

Update: 2025-10-29
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Description

Just when you thought DNS cache poisoning was a thing of the past, Steve and Leo reveal why this 17-year-old bug is making a dramatic comeback—and why most DNS resolvers still can't manage high-quality random numbers after all this time.


  • The unsuspected sucking power of a Linux-based robot vacuum.

  • Russia to follow China's vulnerability reporting laws.

  • A pair of Scattered Spider UK teen hackers arrested.

  • Facebook,Instagram and TikTok violating the EU's DSA.

  • Microsoft Teams bringing user WiFi tracking bypolicy.

  • You backed up. That's great. Did you test that backup?

  • Coveware reports all-time lowransomware payment rate.

  • Ransomware negotiator reports how the bad guys get in.

  • Lots of listener thoughts and feedback about NIST passwords.

  • And against all reason and begging credulity, it seems we still haven't managed to put high-quality random number generators into our DNS resolvers.

Show Notes - https://www.grc.com/sn/SN-1049-Notes.pdf


Hosts: Steve Gibson and Leo Laporte


Download or subscribe to Security Now at https://twit.tv/shows/security-now.


You can submit a question to Security Now at the GRC Feedback Page.


For 16kbps versions, transcripts, and notes (including fixes), visit Steve's site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6.


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Security Now 1049: DNS Cache Poisoning Returns

Security Now 1049: DNS Cache Poisoning Returns

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