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EaseFilter Data Protection SDK is a mature, commercial-grade kernel-mode file system filter driver framework designed to provide maximum security for Windows file systems. It enables developers to intercept every file I/O operation—including open, create, read, write, rename, and delete—and apply sophisticated security logic before the operation reaches the disk. Key Technical Capabilities: 1. Granular Access Control: Build policies to allow or deny file access based on user identity (SID), process name, process ID (PID), or specific file masks. Prevent unauthorized users from viewing or modifying sensitive directories. 2. Transparent File Encryption (TFE): Automatically encrypt data as it is written and decrypt it as it is read using AES-256. The encryption is entirely transparent to authorized applications while ensuring that raw data on the disk remains unreadable to unauthorized entities. 3. Proactive Ransomware Defense: Detect and block suspicious I/O patterns, such as mass file renames or unauthorized encryptions, effectively stopping ransomware in its tracks at the driver level. 4. Real-Time Auditing and Monitoring: Capture detailed metadata for every file operation, providing an immutable audit trail for compliance with GDPR, HIPAA, and PCI-DSS. 5. Process and Thread Verification: Verify the integrity of processes accessing files using digital signatures or SHA-256 hashes to ensure only authentic binaries interact with protected data. 6. USB and Network Control: Extend protection to removable storage and network shares, blocking unauthorized data egress and tracking remote IP addresses. 7. Easy Integration: Includes comprehensive C# and C++ demo projects (such as the File Protector Demo) and supports modern Windows environments from Windows 7 to Windows 11 and Windows Server 2022.