A due diligence review is a process that involves conducting a comprehensive analysis and assessment of an enterprise's information and technology assets, capabilities, risks, issues, opportunities, etc., before making a significant decision or transaction. A due diligence review helps to ensure that an enterprise has a clear understanding of the current state and potential impacts of its information and technology activities on its strategy, objectives, performance, value, etc., as well as on its compliance with relevant laws, regulations, standards, guidelines, contracts, or agreements. It is critical to perform a due diligence review following a merger, acquisition, or divestiture event. A merger is an event that involves combining two or more enterprises into one entity. An acquisition is an event that involves one enterprise purchasing another enterprise or its assets. A divestiture is an event that involves one enterprise selling or transferring part of its business or assets to another enterprise. By performing a due diligence review following a merger acquisition or divestiture event an enterprise can ensure that it has identified and addressed any information and technology related risks issues gaps etc., that may arise from the integration or separation of information and technology assets capabilities processes systems structures culture etc., that it has aligned its information and technology governance and management with its new strategy objectives needs expectations etc., that it has optimized its information and technology performance and value delivery etc34 References: 3: COBIT 2019 Framework: Governance and Management Objectives: page 20-21 4: COBIT 2019 Design Guide: page 47-48