Ferenc Leitold graduated from Technical University of Budapest in 1991. He received his Ph.D. at Technical University of Budapest too, in 1997 in the theme of computer viruses. Currently he teaches in the Institution of Informatics at College of Dunaújváros. He teaches computer security, and computer networks. His research interest is based on computer malware: mathematical model of computer viruses, automatic methods for analysing malware and testing protections . According to the CheckVir project of Veszprog Ltd. he is dealing with the testing of anti-malware software products. From October 2004 he is a member of the editorial board of the Journal in Computer Virology.