HIPAA establishes rules to protect patient privacy and confidentiality. It regulates protected health information (PHI), which is essentially any information about a patient's healthcare, identity, or payment. PHI includes details like names, addresses, medical conditions, and treatments. Healthcare workers can access and use PHI for treatment, payment, and operations, and may disclose it as required by law. However, workers should only access the minimum necessary information needed to do their jobs and must protect electronic PHI, following rules for devices, email, and internet use. Violations of privacy policies can result in penalties.