In: encryption
VoIP Security 101: What you need to know
April 30, 2017As present at IT Expo 2017 and the joint VoIP on Tap and Peerlyst Tel Aviv security Meetups Can your company…
Read MoreMeet GreenfieldTech at Astricon 2016
June 30, 2016The schedule is out for Astricon 2016: Mobile VoIP is so damn hard! Thursday, September 29 • 10:45am – 11:30am…
Read MoreAstricon 2013 Security Master Class Videos
November 21, 2013Official Videos from Astricon 2013 Security Master Class have been posted Greenfield Technology not only organized these 2 days of security…
Read MoreSometimes, Reality is far more scary…
October 13, 2013During this years Astricon, Eric Klein and myself were entrusted with the task of helping to organize and execute the Asterisk…
Read MoreAsterisk 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…
Read MoreAsterisk Hack Pattern Discovered
September 11, 2011As you know, fraud analysis and Telephony Security forensics are a big thing here at GreenfieldTech. As our CEO, Mr. Simionovich,…
Read MoreSecuring an Israeli Asterisk PBX system
May 17, 2011Many people are asking us how to secure their Asterisk PBX system. It is fairly obvious to say that closing down…
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