A father of ERPScan Security Scanner for SAP. Organizer of ZeroNights deep-technical security conference. His expertise covers security of enterprise business-critical software like ERP, CRM, SRM, banking and processing software. He is the manager of OWASP-EAS (OWASP subproject), a well-known security expert of the enterprise applications of such vendors as SAP and Oracle, who published a significant number of the vulnerabilities found in the applications of these vendors with acknowledgements from SAP. He is the writer of multiple whitepapers and surveys devoted to information security research in SAP like "SAP Security in figures". Alexander were invited to speak and train at international conferences such as BlackHat, RSA, HITB and 30 others around globe as well as in internal workshops for SAP and fortune 500 companies.