Author Sieuwert van Otterloo
Dr. Sieuwert van Otterloo is a court-certified IT expert with interests in agile, security, software research and IT-contracts. He is a also an ISO 27001 and NEN 7510 auditor and AI researcher.
Time stamping files using bitcoin and blockchain
Bitcoin or blockchain technology can be used for creating secure time-stamped digital signatures. We show an easier way to do this that works today, without the need for any third party website.
Sieuwert van Otterloo
Learn security testing at OWASP
OWASP is more than just a top 10: The Netherlands has local OWASP meetings where security knowledge is shared. The last meeting was a workshop about Pen-testing with tips and tricks from security expert Jacco van Tuijl. Interested? We hope to see you at the next local meeting.
Sieuwert van Otterloo
Lean startup explained in 15 words
Lean startup is a new, agile method for developing new products. The method is used by most technology startups and accelerators but also applies to corporate innovation teams. This article summarizes the Lean Startup jargon as a refresher for people who attended a Lean Startup workshop.
Sieuwert van Otterloo
Secure transfer of source code
ICT Institute often receives source code and other files for analysis. If you are working with us and want to send us code, there are the guidelines.
Sieuwert van Otterloo
Getting started with a responsible disclosure policy
A responsible disclosure policy allows people to test the security of your IT. It is a highly recommended security measure for larger organisations: it gives more insight, reduces incidents and helps find security talent.
Sieuwert van Otterloo