Thanks to our own salaried and highly qualified cyber security experts we are your trusted partner for first-class cyber security services.
40+ highly qualified cyber security experts – including certified penetration testers (OPST, OPSA, OSCP, OSCE, GXPN), digital forensics specialists (ISO 27035, CERT-CSIH, GCIH, GCFA, GCFE, GREM, GNFA), ISO security auditors (ISO 27001 Lead Auditor, ISO 27005 Risk Manager), Lead Incident Manager (ISO 27035 Incident Manager) and IT security researchers – solve your most demanding information security challenges.
For quality reasons all our services are provided by our own salaried certified security specialists.
CEO Oneconsult AG & Chairman Oneconsult International AG
Senior Security Consultant & IT Forensics Specialist
MSc UZH IS, ISO 27001 Senior Lead Auditor, OPST
Christoph Baumgartner founded Oneconsult AG in 2003 and has been Chief Executive Officer since. Together with Tobias Ellenberger he represents the operative management of Oneconsult group and heads the management team. Christoph is responsible for consulting, human resources, marketing, finance and administration. He holds a master’s degree in information systems from the university of Zurich and since 1996, he has been working as a consultant focusing on IT security and IT strategy with many years' experience as a project manager and consultant in a wide range of industries. Before setting up Oneconsult, Christoph has held a number of management positions at various respected system and security integrators. He specializes in ISO 27001 und ISO 27002 security audits, security guidelines and concepts, IT forensics as well as strategic consulting. Christoph is a certified ISO 27001 Senior Lead Auditor, an OSSTMM Professional Security Tester (OPST) and an ISECOM board member.
Key ID: 0x160F25D8 Key FP: 5E55 1445 A55E 6CFE 814E 29FC A9EC C172 160F 25D8
COO Oneconsult AG & CEO Oneconsult Deutschland GmbH
Senior Security Consultant & IT Forensics Specialist
Mediamatiker EFZ, OPST & OPSA
Tobias Ellenberger is Chief Operating Officer at Oneconsult AG and a member of the operational management. Since 2017 Tobias is as well Chief Executive Officer of Oneconsult Deutschland GmbH. Together with Christoph Baumgartner, he is in charge of the strategic and operational management of the Oneconsult Group. Tobias is responsible for incident response & IT forensics, account management and strategic projects throughout the group. He also shares his expertise as a regular speaker at universities, trade fairs, customer events and seminars. He advises key accounts on the topics of cyber security and incident response and have held several positions as Chief Information Security Officer (CISO). Before joining Oneconsult in 2010 as a penetration tester and security consultant, he worked for various international companies in the fields of engineering and consulting. Tobias Ellenberger heads the CSIRT of Oneconsult International AG (OCINT-CSIRT). He is a board member of the Swiss Cyber Experts Association and a member of the «Cyber Security» commission of ICT Switzerland.
Key ID: 0xB642CA64 Key FP: A101 F0AE 8AF1 ABA5 A072 31E6 CA55 EC59 B642 CA64
Chief Technical Officer Oneconsult AG
Senior Penetration Tester & IT Forensics Specialist
BSc FH CS, GCFA, GCFE, OPST
Tobias Castagna is Chief Technical Officer at Oneconsult AG and has been a member of the extended management team since 2015. He is responsible for penetration testing. Tobias attended university at the Scuola Universitaria Professionale della Svizzera Italiana (SUPSI), and then at the Berner Fachhochschule (BFH) in Biel focusing on IT security. In 2009 he started at Oneconsult as a penetration tester and became a team leader in 2012 and department head in 2015. Tobias specializes in malware incident response and digital forensic investigations as well as penetration tests of (web) applications and mobile apps. He is a GIAC Certified Forensic Analyst (GCFA), a GIAC Certified Forensic Examiner (GCFE) and a certified OSSTMM Professional Security Tester (OPST).
Key ID: 0x39557F3A Key FP: 377C 8B8B BCC2 B352 CB2F B760 FE10 E6E9 3955 7F3A
Chief Research Officer Oneconsult AG
Senior Penetration Tester & Security Consultant
MSc ETH CS, OPST & OPSA, OSSTMM Trainer
Jan Alsenz has been a member of the extended management team since 2010 and is Chief Research Officer since 2015. He leads the research team at Oneconsult, which analyzes and develops new exploits and attack scenarios, and publishes security advisories and specialist IT security articles. After his master’s degree in computer science at ETH Zurich, Jan joined Oneconsult in 2009 and has since been active in penetration testing and security consulting with a special focus on sophisticated technical audits (e.g. APT and SCADA), code reviews, reverse engineering, exploit development and training. Jan is a certified OSSTMM Professional Security Tester (OPST), OSSTMM Professional Security Analyst (OPSA), OSSTMM trainer and member of the ISECOM Core Team.
Key ID: 0xF19BD6C1 Key FP: D7DA 3169 7C2E 848A 54F8 1669 5BA2 0FB2 F19B D6C1
Head of Resource & Backoffice Management
Dipl. Betriebswirtschafterin HF
After finishing her commercial education at a vocational high school, Zeynep Knobel (ex Coblar) studied at the business school in Rapperswil where she gained her Advanced Federal Diploma of Higher Education in Business Administration. Before joining Oneconsult in March 2015, she worked as a managing clerk and sales manager for a transport organization and two international trading companies. Since July 2016, Zeynep has been leading the backoffice team and is responsible for proposal management, project planning as well as invoicing.
Key ID: 0x6E0F5024 Key FP: 3FAC 5066 E6D9 7C68 2F85 B3EE BF7A BE1C 6E0F 5024
Backoffice Manager (Deputy Backoffice Teamleader)
Kauffrau EFZ, Federal Diploma of Vocational Education and Training
Lorella Mistretta finished her commercial apprenticeship in summer 2017 working in administration and services. She joined Oneconsult in September 2017 and is the contact person for various customer issues. Lorella has also been deputy team leader of the back office team since November 2018.
Key ID: 0xD08F3426 Key FP: 7736 F249 8C0B 00FA F9FC BE10 9DEC D377 D08F 3426
Head of Incident Response & IT Forensics
IT Forensics Specialist & Security Consultant
MSc ETH EEIT, ISO 27035 Lead Incident Manager, CERT-CSIH, GCIH, GCFA, OSCP, OPST
Adrian Schoch has studied Electrical Engineering and Information Technology at Swiss Federal Institute of Technology (ETH) in Zurich. During his master studies, he developed a viterbi decoder chip for 3G mobile telecommunications technology and worked as a software engineer for a leading semiconductor manufacturer. After earning his degree, Adrian was hired by one of the “Big Four” audit firms as a cyber security consultant where he reviewed IT security concepts and carried out vulnerability tests and mobile application security audits, amongst others. In June 2016, he joined Oneconsult as a penetration tester and IT forensics specialist and has been leading the incident response & IT forensics team since September 2016. Adrian is a ISO 27035 Lead Incident Manager, CERT-Certified Computer Security Incident Handler (CERT-CSIH), a GIAC Certified Incident Handler (GCIH), a GIAC Certified Forensic Analyst (GCFA), an Offensive Security Certified Professional (OSCP) and a certified OSSTMM Professional Security Tester (OPST).
Key ID: 0x716EF8B8 Key FP: 293C 366E A2A9 5256 0A8C 2BDD 563F 59CC 716E F8B8
Head of Sales
Thomas Tunkel has many years of managerial experience in the service industry in the German- and English-speaking world. Beginning in 1999, he turned to strategy implementation and gained experience in sales, customer orientation and management. Thomas is a lecturer for sales, project management and organization at various colleges and educational institutes and joined Oneconsult in April 2017 as a Security Sales Executive. He is Head of Sales since August 2017.
Key ID: 0xA29DEF41 Key FP: 0F1E F3E1 6CE6 D4E5 2E82 1416 0BF0 D8FA A29D EF41
Head of IT
System Engineer & Penetration Tester
Informatiker EFZ, GCED, OPST
Already during his apprenticeship and professional activity in logistics, Marco Wohler was interested in computer science. This is why he decided to attend a vocational college to do an IT apprenticeship. During his practical training, Marco has gained extensive experience with Linux and Windows systems as well as in IT support, release and project management. Since November 2014 he has been employed as a system engineer and penetration tester at Oneconsult; since October 2018 he has also been leading the IT team. Marco is a GIAC Certified Enterprise Defender (GCED) and a certified OSSTMM Professional Security Tester (OPST).
Key ID: 0x1A4D7D98 Key FP: 0A25 B595 2115 3918 B5B8 4E3B A43C 071E 1A4D 7D98
Branch Manager Bern
Senior Penetration Tester & Security Consultant
BSc FH CS, ISO 27001 Lead Auditor, OSCP, OPST, OPSA & OPSE, CTT+, SVEB 1, OSSTMM Trainer
After his IT apprenticeship in the public administration, Yves Kraft worked as a system engineer for an IT service provider in financial services and public administration among other industries. Next, he studied computer science at the Berner Fachhochschule in Biel with a focus on IT security, while working for a large Swiss university as a system administrator. Since February 2011, Yves has been working as a security consultant at Oneconsult, focusing on penetration tests, security consulting and training. He was promoted to team leader in 2013 and branch manager Bern in 2015. Yves is an Offensive Security Certified Professional (OSCP), a certified OSSTMM Professional Security Tester (OPST), OSSTMM Professional Security Analyst (OPSA), OSSTMM Professional Security Expert (OPSE), OSSTMM trainer, ISO 27001 Lead Auditor and CompTIA Certified Technical Trainer (CTT+) and owns the SVEB certificate (Level 1).
Key ID: 0x16B37999 Key FP: CB37 5ED0 EA9C 04B3 D6C8 B871 056C CAB9 16B3 7999
Branch Manager Munich
Senior Penetration Tester, IT Forensics Specialist & Security Researcher
BSc BIT, OSCP, GREM, OPST
Rafael Scheel finished his IT apprenticeship at the ETH Institute for Snow and Avalanche Research with a thesis on intrusion detection systems in 2011. Afterwards, he enrolled at the Lucerne University of Applied Sciences and Arts to study business information technology and gained his BSc BIT degree in September 2015. At the beginning of his studies he worked part-time in the field of network security for a leading Swiss IT security vendor. In March 2014, Rafael joined Oneconsult focusing on penetration testing and security research with an emphasis on exploit development and became branch manager Munich in June 2017. He is an Offensive Security Certified Professional (OSCP), holds the GIAC Reverse Engineering Malware (GREM) certificate and is an OSSTMM Professional Security Tester (OPST).
Key ID: 0x18A7CCAA Key FP: 7C3B 8F43 7106 7462 1E3B AC2C 295E F362 18A7 CCAA