FusionAuth is designed with strict security in mind from its inception, focusing on allowing development teams to focus on their application's core value proposition rather than building and maintaining a user access management system. The platform provides numerous features to ensure GDPR compliance, including data protection through server security, firewalls, and encryption; data isolation as a single-tenant solution; easy API access for data retrieval and deletion; user data abstractions using opaque tokens and complex user IDs; password constraints that comply with NIST regulations; and a breach notification policy that notifies users within 24 hours. These features enable FusionAuth to provide the most secure and flexible solution on the market, allowing developers to stay ahead of current best practices and avoid steep fines possible under the GDPR regulation.