Data Encryption

Data encryption is the process of converting readable information — known as plaintext — into an unreadable coded format called ciphertext using a cryptographic algorithm and a secret key. Only authorized parties who possess the correct decryption key can reverse the process and access the original data. Two primary forms exist: symmetric encryption, where the same key encrypts and decrypts, and asymmetric encryption, which uses a public-private key pair. Encryption protects data both in transit (while moving across networks) and at rest (while stored on servers, databases, or devices).

Digital publications frequently contain proprietary content, customer data collected through lead-capture forms, or payment information from document sales. A single data breach can expose thousands of reader records, leading to regulatory fines, legal liability, and lasting reputational damage. Without encryption, information traveling between a reader's browser and your publishing platform can be intercepted by anyone monitoring the network. Strong encryption ensures that even if an attacker gains access to raw data — whether through a compromised server or a man-in-the-middle attack — they cannot read or use it. For publishers operating under regulations like GDPR or HIPAA, encryption is not optional; it is a compliance requirement.

FlipLink uses HTTPS with TLS encryption for every connection between readers and the platform, meaning each page view, form submission, and file download is encrypted in transit. Data stored on FlipLink's servers — including uploaded PDFs, collected leads, and account credentials — is encrypted at rest using industry-standard algorithms. When you enable [password protection](/features/password-protection) on a publication, the access credentials are cryptographically hashed and stored securely, so even FlipLink's own systems cannot reverse them. For publications sold through FlipLink's Stripe integration, all payment processing occurs over Stripe's PCI-compliant encrypted infrastructure, ensuring card details never touch FlipLink's servers directly. Publishers using [custom domains](/features/custom-domains) receive automatic SSL certificate provisioning, maintaining encryption across branded URLs.