myASSURANCE system is an existing system created to be a centralized platform of online system that will be used by the whole PETRONAS Group for any Assurance and Audit matters. myASSURANCE consists of First Line Assurance for Business Unit, OPU & Assets, Second Line Assurance for Corporate Unit as Assurance Providers, Third Line Assurance for all Internal Auditors in PETRONAS, External Audit, and Regulator Audit.​