​Dennis Fisher talks with security pioneer Marcus Ranum about writing an early Internet firewall at DEC, the security gold-rush era of the 1990s and early 2000s, why he never patented most of the ideas he has come up with and how he found peace of mind.

Download: 17_ranum.mp3

Music by Chris Gonsalves


Categories: Podcasts, Web Security

Comments (5)

  1. mr mo

    Hi Dennis,
    the download of the mp3 isn’t working. Would be great if you could fix it. Thanks!

    • Chris Brook

      Hi there mr mo,

      Have you tried right clicking and saving the link as an MP3? It’s working for me right now.


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