Cross-border data transfer has always been a compliance hurdle that decentralized storage protocols cannot avoid. Countries, considering data sovereignty, have imposed strict restrictions on cross-border transfers. Walrus has come up with a solution—by combining localized storage, encrypted transmission, and compliant integration—to solve this difficult problem.

First, regarding localized storage. In countries like China, India, and Russia, which require data to be stored locally, Walrus directly deploys compliant nodes within these regions. User data is primarily stored locally, eliminating the need for cross-border transfer. Even if some data slices need to leave the country, Walrus's RedStuff encoding slice technology ensures that—single slices cannot reconstruct the original data, guaranteeing security. For example, in the Indian market, Walrus has compliant nodes in cities like Mumbai and Bangalore, so Indian users' data stays there, fully complying with the Personal Data Protection Law.

Next, on cross-border transfer. For countries that permit data to leave borders, Walrus uses end-to-end encryption, encrypting all data slices that need to be transferred across borders. The encryption keys are held solely by the user, and neither Walrus nor any third party can access them. Moreover, they employ quantum-resistant encryption algorithms to ensure that even if data is intercepted during transmission, it cannot be decrypted.