I am Jean-Pierre Verheij. I started as an ICT programmer in March 1988. In the years that followed, I continued to develop myself, delving into Oracle Databases, among other things, and providing support to clients in this area. In addition to programming, I have also been involved in hardware support. Through my long career in ICT, I have gained extensive knowledge of operating systems such as Windows, but also UNIX, Linux, Mac OS, and operating systems on portable devices, including tablets and smartphones. Furthermore, since 2002, I have also specialized in various systems that ensure a secure network environment, whether at your office, in data centers, or in public cloud environments. This includes not only firewall environments but also email security solutions, backup solutions, etc.