Final answer:
The regulation that mandates recordkeeping by licensed business entities under the Private Security and Investigative Services Act, 2005, is the Recordkeeping Requirements for Licensed Business Entities.
Step-by-step explanation:
The Regulation under the Private Security and Investigative Services Act, 2005, that sets out what data a licensed business entity shall keep is the Recordkeeping Requirements for Licensed Business Entities. Governments, private entities, and organizations have a vested interest in ensuring that sensitive information remains secure and private. This includes protecting personal, financial, medical, and proprietary information to avoid harming individuals or the national security. On the federal level, regulations like the Health Insurance Portability and Accountability Act (HIPAA) and various cyber data privacy laws ensure that certain standards are met by businesses for maintaining confidentiality and safeguarding this critical data.