Welcome to the official "hang out" of David Kierznowski.

Kierznowski is a senior security consultant based in the UK (South East). He has a great passion for both defensive security architecture and offensive penetration testing techniques.

David is actively involved in the security and open source communities. His research has been featured on a number of high profile sites, such as eWeek, Slashdot and SecurityFocus.

As well as being proud of his elite yachtsman qualification (which he never uses), David is also a CHECK Team Leader and holds Security Check (SC) clearance.