Ferenc Leitold Ferenc Leitold graduated from the Technical University of Budapest in 1991. He received his Ph.D. at the Technical University of Budapest too, in 1997, in the theme of computer viruses. Currently he teaches computer security and computer networks at the University of Dunaújváros, Hungary. His research interest is based on managing the protections against computer threats: mathematical models of computer viruses, automatic methods for analysing computer threats. According to the Checkvir project (www.checkvir.com) of Veszprog Ltd. he is dealing with the testing of different types of protections. Since 2015 he ihas led the R&D team of Secudit Ltd, which is dealing with the vulnerability measurement of an enterprise.