Encryption protocols are standardised methods for converting readable data (plaintext) into an unreadable format (ciphertext) that can only be decoded with the correct key.
They protect data both in transit, as it moves between browsers, servers, and APIs, and at rest, when stored on disks, databases, or backups. Widely used protocols include TLS (Transport Layer Security) for web communications, AES (Advanced Encryption Standard) for symmetric data encryption, and RSA for asymmetric key exchange. Together, these protocols form the backbone of digital security.
For websites, TLS is the most critical encryption protocol. It secures HTTPS connections, ensuring that data exchanged between visitors and web servers cannot be intercepted or tampered with by attackers. Modern best practice mandates TLS 1.2 or 1.3, with older versions like TLS 1.0 and SSL 3.0 deprecated due to known vulnerabilities.
Beyond transport encryption, websites that store personal data should employ AES-256 encryption for database contents and implement proper key management to prevent unauthorised decryption.
GDPR explicitly calls for encryption as an appropriate technical measure for protecting personal data under Article 32. Implementing strong encryption protocols can also serve as a mitigating factor during regulatory investigations following a data breach.
However, encryption alone does not satisfy privacy requirements, organisations must also ensure lawful data collection through proper consent mechanisms. Seers.ai works alongside encryption infrastructure to ensure that personal data is both collected lawfully and protected technically throughout its lifecycle.
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