• 2015-01-03 SS7: Locate. Track. Manipulate. - slides from my 31C3 talk
• 2013-01-24 xgoldmon tool released
• 2012-09-27 What's the difference between USSD, MMI and SS codes?
• 2009-01-09 Locating Mobile Phones using SS7 - slides from my 25C3 talk
• 2008-12-30 Curse of Silence Vulnerability Advisory and Demo Video
• 2001-12-28 SMS & all its features - Vortrag auf dem CCCongress 2001