Mobile health, or mHealth, utilizes consumer electronic technologies to improve healthcare delivery by increasing transparency and convenience. As mHealth grows, protecting sensitive patient information transmitted across devices becomes more important. Whether an mHealth company is regulated by HIPAA depends on its relationship to covered entities. If an mHealth app directly interacts with a provider or health system, transmitting patient data to electronic health records, the company is likely a business associate subject to HIPAA. Ensuring strong cybersecurity is key to protecting patient privacy and avoiding costly HIPAA breaches for companies involved in mHealth.