Which measure is critical in protecting patient data from unauthorized access during storage and transmission?

Utilizing strong data encryption is crucial for protecting patient data from unauthorized access during both storage and transmission. Encryption effectively scrambles the data, making it unreadable to anyone who does not possess the correct decryption key. This process ensures that sensitive information, such as personal health records and billing details, remains confidential and secure from potential breaches and cyberattacks.

When data is encrypted, even if it is intercepted during transmission or accessed without authorization during storage, it remains safeguarded. Only authorized individuals with the appropriate keys can decrypt and access the original information, thereby significantly reducing the risk of unauthorized access.

In contrast, relying on outdated regulations does not ensure the protection of patient data, as security measures need to evolve alongside technological advancements and emerging threats. Training staff is essential; however, it cannot replace the technical safeguards that encryption offers. Lastly, using default security settings often leaves systems vulnerable, as these settings are widely known and can be easily exploited by malicious actors. Therefore, strong data encryption stands out as the most effective strategy for maintaining the security of patient information against unauthorized access.