Legal
Security
Security is foundational to everything we build. Here is how we protect your business and your customers.
PCI DSS Level 1
The highest level of payment card industry certification, audited annually by independent assessors.
End-to-end encryption
All card data is encrypted in transit (TLS 1.3) and at rest (AES-256).
Fraud detection
Machine learning models analyze transactions in real time to block suspicious activity.
SOC 2 Type II
Our infrastructure and processes are audited against rigorous security and availability standards.
Infrastructure
Our platform runs on hardened cloud infrastructure with network segmentation, DDoS protection, and automated vulnerability scanning. Access to production systems requires multi-factor authentication and is logged and audited.
Responsible disclosure
If you discover a security vulnerability, please report it to security@stackpay.com. We appreciate responsible disclosure and will acknowledge valid reports promptly.