Which of the following is a privacy breach according to HIPAA?

Comprehensive and Detailed Explanation From Exact Extract:

Under Patient Safety and Compliance with Privacy Regulations, HIPAA (Health Insurance Portability and Accountability Act) strictly prohibits unauthorized access to protected health information (PHI).

A caregiver accessing her spouse’s medical record without authorization constitutes a privacy breach because it violates patient confidentiality and lacks a legitimate treatment, payment, or operational purpose.

The other activities listed are permitted under healthcare operations or authorized representation exceptions.