Security Standards

Security isn't an afterthought in Calcuin—it's woven into the source code. We protect your business with a multi-layered security architecture.

1. Mathematically Verified DB

All records stored in your local ledger are protected by our proprietary Verification Engine. This ensures that no data can be altered externally without the system detecting a checksum mismatch, preventing unauthorized tampering with your financial history.

Local Encryption (AES-256)

All data written to your disk is encrypted using industry-standard AES-256. Even Calcuin cannot access your data. We do not have "backdoors" into your local installation.

Metadata Stripping

When you export to PDF or Excel, Calcuin strips unnecessary metadata to prevent information leakage, ensuring only the intended data leaves your secure environment.

Zero-Cloud Policy

Calcuin uses time-sensitive hashes to protect your invoices. Because we store zero data on our servers, there is no central database for hackers to target. Your security perimeter is your own hardware.