Hans is probably best known as ethical hacker. Mid 2017 he sold his shares in Madison Gurkha, the company he started in 2000, together with his partners Guido van Rooij and Mark Huizer. This company delivered high quality penetration testing services and security consultancy to the top-1000 organisations (enterprises, (research) institutions and government) in The Netherlands. These services enabled them to efficiently identify, mitigate and prevent (business) security risks. During this time the organisation was regarded one of the top-3 penetration test specialists in The Netherlands. Before building this company Hans was involved as a senior security consultant with the RISC team at PinkRoccade. Hans started his professional carreer as a software engineer at the R&D department of Positronika Data Systems, after which he has various roles in various companies including Datex Industrial Automation, Balance Industrial Automation, Vicorp, and Sequent Computer Systems. In the past Hans has delivered various presentations and workshops at (international (hacker)) conferences, including (but not limited to): SANE, HOPE, Black Hat and HAL, and he is still passionate to share information and knowledge in presentations and workshops at company meetings, at universities and other educational institutions.
Over 35 years of experience in the ICT security field working for major Dutch and international companies and organisations.
Passionate about privacy protections and securing intellectual properties. Noticed a long time ago that IT security always revolves around the proper protection of delicate data. Specialties: Attack and penetration tests, IT security training and consultancy on improving software, system and network security.
I am always looking for new exciting projects in both The Netherlands and abroad.
Perhaps this blog turns out a bit of a rant, but since I am a strong advocate on the right of privacy and security of your (personal) data I think the subject of this blog is both relevant and has been neglected too bloody long!
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Recently I decided it was time again to do some IT work on my colo host. Besides a nessesary upgrade of the Operating System I was finally ready to start using IPv6 (I know!
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December, almost the end of another year, and what a year it has been. It started with Brexit, and as the months went by our lives were impacted even more that you and I would ever imagine by a pandemic.
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A few weeks before this website was first published I started with an update of my Curriculum Vitae. Sure, the information on LinkedIn is mostly up to date, but prospects and customers often ask for a document they can print and/or store as well.
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Since I first published the initial version of the website I have received a couple of questions about this image I use on the homepage. So even though an image often tells more than a thousand words, sometimes an image needs some additional comments to be really appreciated.
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After a lot of trial and error and not understanding why modifications in certain files (for instance SCCS) did not result in the desired effect, the basic website finally takes form.
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