#2023
- Talk: x | BSidesCPT | Cape Town, South Africa
- Talk: The Paterva Story | Le Hack | Paris, France
#2022
- Talk: XXX astroturfing campaign | BSidesCPT | Cape Town, South Africa
- Workshop: Supercharge your browser for better investigations | BSidesCPT | Cape Town, South Africa
- Talk: XXX astroturfing campaign | OxCon | Johannesburg, South Africa
- Workshop: Supercharge your browser for better investigations | AIJC | Johannesburg, South Africa
#2021
- Talk: Vortimo Technology 2021 | ConInt | Virtual
- Talk: Hoarding the web: Capturing information in 2021 | Layer8 | Virtual
- Talk: Lessons learned building OSINT tools | IsolationCon-2 | Virtual
#2019
- Talk: Lessons learned building OSINT tools | dex-XL | Utrecht, The Netherlands
#2017
- Talk: ICS transforms in Maltego | SAS (Kaspersky) 2017 | Sint Maarten
- Training: Open source intelligence with Maltego | Blackhat USA 2017 | Las Vegas, USA
- Training: Digital intelligence gathering using Maltego | SAS (Kaspersky) 2017 | Sint Maarten
- Training: Threat intelligence using Maltego | Hack in the box 2017 | Amsterdam, The Netherlands
- Talk: Finding useful and embarrassing information with Maltego | KPN (Guest Hacker) | Amsterdam, The Netherlands
#2016
- Talk: Monitoring News Events with Maltego | SAS (Kaspersky) 2016 | Tenerife
- Training: Digital intelligence gathering using Maltego | SAS (Kaspersky) 2016 | Tenerife
- Talk: Comparing attack surfaces of various organisations using OSINT | ACSC 2016 | Canberra, Australia
- Workshop: Delving deeper into Maltego | DCC 2016 | Vienna, Austria
#2015
- Talk: Internet surveillance for everyone | ZaCon 4 | Johannesburg, South Africa
- Training: Cyber intelligence gathering using Maltego | Blackhat USA 2015 | Las Vegas, USA
- Workshop: Auto data collection & visualization | Underground Economy 2015 | Glasgow, Scotland
#2014
- Workshop: Maltego | DCC 2014 | Singapore, Singapore
#2013
- Talk: Maltego Tungsten as a collaborative attack platform | Blackhat USA 2013 | Las Vegas, USA
- Training: Digital intelligence gathering using Maltego | Blackhat USA 2013 | Las Vegas, USA
- Talk: Lessons learned when building and selling security software online – the Maltego story | ITWeb 2013 | Johannesburg, South Africa
#2012
- Talk: Radium – Auto data collection & visualization | Breakpoint 2012 | Melbourne, Australia
- Talk: Unleashing Radium – the rise of the machines | Nordic Security Conference 2012 | Reykjavik, Iceland
- Training: Maltego | Nordic Security Conference 2012 | Reykjavik, Iceland
- Talk: Maltego machines | IT Defense 2012 | Munich, Germany
- Talk: Open Source Intelligence | ZaCon 3 | Johannesburg, South Africa
- Talk: Maltego and you | 44Con 2011 | London, United Kingdom
#2011
- Talk: Your enemy can know everything about you | Hackcon 2011 | Oslo, Norway
- Workshop: Extending Maltego With Your Applications, Scripts And Data | Blackhat EU 2011 | Barcelona, Spain
- Training: Digital intelligence gathering using Maltego | Blackhat EU 2011 | Barcelona, Spain
- Training: Digital intelligence gathering using Maltego | Blackhat USA 2011 | Las Vegas, USA
- Talk: Something About Tea | ZaCon 2 | Johannesburg, South Africa
#2010
- Talk: Your Life Online: No More Secrets Marty | Ekoparty 2010 | Buenos Aires, Argentina
- Talk: About you… all about you | GovCERT NL 2010 | Rotterdam, The Netherlands
- Talk: Maltego 3 – Start Your Engines | Hack in the box 2010 | Amsterdam, The Netherlands
- Talk: Unveiling Maltego 3.0 | Blackhat EU 2010 | Barcelona, Spain
- Talk: Make Tea Not War | ZaCon 1 | Johannesburg, South Africa
- Talk: Connecting the dots in the cloud | SANS | London, United Kingdom
#2009
- Talk: Open source intelligence | AUScert 2009 | Gold Coast, Australia
- Talk: Evaluating the Credibility of a Cyber Threat | CCDCOE 2009 | Tallinn, Estonia
- Talk: Integrating Maltego with Offensive and Defensive Open Source Tools | Blackhat EU 2009 | Amsterdam, The Netherlands
#2008
- Talk: Investigating individuals and organizations using open source intelligence | HackLu 2008 | Luxembourg, Luxembourg
- Talk: Investigating individuals and organizations using open source intelligence | Microsoft BlueHat 2008 | Redmond, USA
- Talk: Investigating individuals and organizations using open source intelligence | Blackhat EU 2008 | Amsterdam, The Netherlands
#2007
- Talk: I know what you (and your company) did last summer… | FIRST 2007 | Seville, Spain
- Talk: I know what you (and your company) did last summer… | CanSecWest 2007 | Vancouver, Canada
- Talk: Web 2.0: risks and opportunities | GovCERT NL 2007 | Noordwijk, The Netherlands
#2006
- Talk: A tale of two proxies | DEF CON 14 | Las Vegas, USA
- Talk: A tale of two proxies | Blackhat USA 2006 | Las Vegas, USA
- Training: HBN – Combat | Blackhat USA 2006 | Las Vegas, USA
- Talk: Attacking and defending web v2.0 | GovTech 2006 | South Africa
- Talk: Overview of SensePost’s 2005 tool shed | Hackcon 2006 | Oslo, Norway
#2005
- Talk: Revolutions in Web Server/Application Assessments | Blackhat EU 2005 | Amsterdam, The Netherlands
- Training: HBN – Combat | Blackhat EU 2005 | Amsterdam, The Netherlands
- Talk: Assessing Server Security – State of the Art | Hack in the Box 2005 | Kuala Lumpur, Malaysia
- Talk: Automation – Deus Ex Machina or Rube Goldberg machine? | Ruxcon, 2005 | Sydney, Australia
- Talk: Automation – Deus Ex Machina or Rube Goldberg machine? | DEF CON 13 | Las Vegas, USA
- Training: HBN – Bootcamp | Blackhat USA 2005 | Las Vegas, USA
- Talk: Automation – Deus Ex Machina or Rube Goldberg machine? | Blackhat USA 2005 | Las Vegas, USA
- Talk: Denial of service – the next wave | Microsoft TechEd 2005 | South Africa
#2004
- Talk: When The Tables Turn | DEF CON 12 | Las Vegas, USA
- Talk: When The Tables Turn | Blackhat USA 2004 | Las Vegas, USA
- Training: HBN – Bootcamp | Blackhat USA 2004 | Las Vegas, USA
- Talk: When The Tables Turn | Blackhat EU 2004 | Amsterdam, The Netherlands
- Training: HBN – Bootcamp | Blackhat EU 2004 | Amsterdam, The Netherlands
#2003
- Talk: Worst Fears II: the workings of a worm | FIRST 2003 | Ottawa, Canada
- Talk: Putting The Tea Back Into Cyber terrorism | DEF CON 11 | Las Vegas, USA
- Talk: Putting The Tea Back Into Cyber terrorism | Blackhat USA 2003 | Las Vegas, USA
- Training: HBN (Hacking by numbers) | Blackhat USA 2003 | Las Vegas, USA
- Talk: Putting The Tea Back Into Cyber terrorism | Blackhat Federal 2003 | Washington DC, USA
- Training: HBN (Hacking by numbers) | Blackhat Federal 2003 | Washington DC, USA
#2002
- Talk: Setiri – Advances In Trojan Technology | DEF CON 10 | Las Vegas, USA
- Talk: Setiri – Advances In Trojan Technology | Blackhat USA 2002 | Las Vegas, USA
- Training: HBN (Hacking by numbers) | Blackhat USA 2002 | Las Vegas, USA
- Talk: Bi-directional Communications in a Heavily Protected Environment | Blackhat Windows 2002 | New Orleans, USA
#2001
- Talk: Practical auditing of HTTP(s) servers | SummerCon 2001 | Amsterdam, The Netherlands