Bojan worked for 5 years in the Faculty of Electrical Engineering at The University of Zagreb (Croatia) till 2002, when he moved to New Zealand. He was the team leader in several enterprise security projects for large customers, as well as a member of several Incident Response Teams in Croatian CERT. At the University of Auckland he architectured and implemented the entire enterprise e-mail system. In 2008 Bojan moved back to Croatia.
For years Bojan had a security column in a computer magazine in Croatia (Mreza). He wrote a book about computer viruses ("What are computer viruses", published in Croatia) and co-wrote a chapter in "AVIEN Malware Defense Guide for the Enterprise", a book released by Syngress in 2007.
He's probably most well known by his diaries for SANS Internet Storm Center in which he regularly analyzes new threats.