eperi sEcure is a cloud data protection solution that encrypts sensitive data before it reaches cloud or web applications, ensuring that even if data is stolen, it remains unusable to unauthorized parties. The platform operates by performing client-side encryption and tokenization, meaning encryption keys and processes remain under the customer's control at all times — the cloud provider never has access to plaintext data. Core capabilities include: - Function-preserving encryption for cloud and web applications, maintaining app usability while protecting data - Support for Microsoft 365 applications (Exchange, OneDrive, SharePoint, Teams, To-Do, Excel) - Salesforce integration with GDPR-compliant encryption - AnyApp module for extending encryption to arbitrary web applications - QuantumEdge module for post-quantum (quantum-safe) encryption - SDK for developers to integrate data protection into custom or additional cloud platforms - Test data generation via client-side tokenization and data masking - Key management retained exclusively by the customer The solution supports compliance with regulations including GDPR, DORA, and NIS-2, and is applicable across industries such as finance, healthcare, and the public sector. It is designed for multi-cloud environments, providing data sovereignty across applications.