Philip R. Zimmermann [Speaker-Timeline] [Speaker-Links]

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Cryptowars 2.0: Lessons from the past, for the present sha-2017 - scoutinglandgoed,netherlands
Cryptowars 2.0: Simulcast sha-2017 - scoutinglandgoed,netherlands
How To Get Phone Companies To Just Say No To Wiretapping defcon-2014 - las vegas,usa
Z-Phone DEF CON-15 - Las Vegas, USA Security
Z-Phone Blackhat USA-2007 - Las Vegas, USA Security
Z-Phone BlackHatDC-2007 - Washington,USA
Turbo-Talk - Special Project Voip Encryption Update DEF CON-14 - Las Vegas, USA Security
The Unveiling Of My Next Big Project DEF CON-13 - Las Vegas, USA Security
A Conversation With Phil Zimmermann DEF CON-11 - Las Vegas, USA Security