In: encryption

VoIP Security 101: What you need to know
April 30, 2017

As present at IT Expo 2017 and the joint VoIP on Tap and Peerlyst Tel Aviv security Meetups Can your company…

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Meet GreenfieldTech at Astricon 2016
June 30, 2016

The schedule is out for Astricon 2016: Mobile VoIP is so damn hard! Thursday, September 29 • 10:45am – 11:30am…

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Astricon 2013 Security Master Class Videos
November 21, 2013

Official Videos from Astricon 2013 Security Master Class have been posted Greenfield Technology not only organized these 2 days of security…

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Sometimes, Reality is far more scary…
October 13, 2013

During this years Astricon, Eric Klein and myself were entrusted with the task of helping to organize and execute the Asterisk…

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Asterisk Hack Pattern – Continued
September 21, 2011

[info_box]This is a cross post – the original post was posted by me on the Humbug Project blog – here[/info_box] First…

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Asterisk Hack Pattern Discovered
September 11, 2011

As you know, fraud analysis and Telephony Security forensics are a big thing here at GreenfieldTech. As our CEO, Mr. Simionovich,…

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Securing an Israeli Asterisk PBX system
May 17, 2011

Many people are asking us how to secure their Asterisk PBX system. It is fairly obvious to say that closing down…

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