A majority of companies that offer email encryption for HIPAA compliance allow senders to “opt-in” to encryption on a message-by-message basis. If the sender “does nothing special” then the email will be sent in the normal/insecure manner of email. If the sender explicitly checks a box or types a keyword in the body or subject of the message, then it will be encrypted and HIPAA-compliant.
Opt-in encryption is desirable because it is “easy.” End users don’t want any extra work and don’t want encryption requirements to slow them down, especially if many of their messages do not contain PHI. It is “good for usability” and thus easy to sell.
However, opt-in encryption is a very bad idea with the inception of the HIPAA Omnibus rule. Opt-in encryption imposes a large amount of risk on an organization, which grows exponentially with the size of the organization. Organizations are responsible for the mistakes and lapses of their employees. Accidentally sending unencrypted emails with PHI is an automatic breach with serious penalties.
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