Answer :

Final answer:

Registered mail is the most secure method for HIPAA compliance.


Explanation:

Registered mail is considered the most secure method to maintain compliance with HIPAA. It provides the highest level of accountability and security, as each step of the mailing process is documented.

With Registered mail, the sender receives a receipt at the time of mailing and another receipt when the item is delivered, making it a reliable choice for sensitive healthcare information.

Unlike other options like Certified or USPS tracking, Registered mail offers additional layers of security, which is crucial when handling protected health information.


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