The Full Form of CISA is Certified Information Systems Auditor.

Certified Information Systems Auditor is a globally recognized certification in the field of audit, control and security of information systems. CISA gained worldwide acceptance having uniform certification criteria, the certification a high degree of visibility and recognition in the fields of IT security, IT audit, IT risk management and governance. Vacancies in the areas of IT security management, IT audit or IT risk management often ask for a CISA certification. The certification is extremely challenging and is associated with a high failure rate. CISA is awarded by ISACA.