The core activity of modzero is the provision of IT security services, in particular: Application penetration testing (security testing of applications), Cloud penetration testing (security testing of cloud infrastructures), Red teaming (simulated attacks on IT systems), Hardware and software analysis (security testing of hardware and software components), Design and concept consulting (advisory services for the development of secure IT systems). The company thus offers comprehensive IT security services to support customers in identifying and mitigating security risks in their IT systems.