Pentest them all. Lead Expert on a Penetration Testing Team at Kaspersky Lab. An author of variety of techniques and utilities exploiting vulnerabilities in XML protocols and telecom equipment security. Author of advisories for various vulnerabilities for major ATM vendors. A speaker at international security conferences: Black Hat, Hack in Paris (presenting the paper on ATM vulnerabilities), NoSuchCon Paris, Nuit du Hack, Positive Hack Days and others.