Security

Security by Design

Payment security is built into every layer of PayFlow, from confidential server-side key governance to role permissions and verified audit logging.

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Defense in Depth

Multi-Layered Payment Protection

Inspect our core security framework protecting API perimeters, credential custody, double-entry records, and audit compliance.

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FOUR DEFENSE TIERS SIMULTANEOUSLY ENFORCED
01

Perimeter & Anycast Shield

TLS 1.3 • mTLS

Hardened Anycast edge nodes with real-time DDoS mitigation and dedicated static egress IPs.

02

Confidential Key Governance

AES-256-GCM Vault

Both API Key & Secret Key are strictly confidential server-side secrets with M-of-N quorum approvals.

03

Data Isolation & Ledger Core

ACID Double-Entry

Tenant-isolated sub-ledgers with mathematically balanced zero drift and HMAC-SHA256 signed webhooks.

04

Cryptographic Audit Vault

SOC 2 Type II

Append-only immutable SHA-256 event chains with hardware FIDO2 WebAuthn authentication.

Security Risks

Common Payment Security Challenges

Payment operations must protect against exposed client credentials, unverified callbacks, and lack of transaction audit trails.

Client Key Leaks

Exposing API keys in frontend code allows unauthorized parties to forge requests. PayFlow enforces strictly confidential server-side credentials.

Protected by PayFlow

Unauthorized Access

Single-user access accounts lack administrative controls. PayFlow provides scoped role-based access for different team members.

Protected by PayFlow

Insecure Data Transit

Unencrypted endpoints risk data tampering. PayFlow enforces TLS 1.3 encryption and strict cryptographic verification across all requests.

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Unverified Webhooks

Unsigned callbacks risk forged status alerts. PayFlow signs every event via HMAC-SHA256 for verified payload integrity.

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Specifications

Core Security Specifications

Defensive architecture designed for reliable payment processing and secure data management.

Confidential Key Governance

Both API Key and Secret Key are strictly confidential server-side secrets, encrypted at rest and never exposed to client browsers.

SECURITY SPECENFORCED

Secure Network Perimeter

TLS 1.3 enforced across all API endpoints, protected routing nodes, and IP address restriction capabilities.

SECURITY SPECENFORCED

AES-256 Storage Encryption

Sensitive credentials and operational tokens are stored using industry-standard AES-256 encryption at rest.

SECURITY SPECENFORCED

Role-Based Permissions

Configurable permission tiers allow organizations to separate operational access between finance, support, and engineering teams.

SECURITY SPECENFORCED

Double-Entry Ledger Integrity

Debit and credit transactions are strictly balanced mathematically, preventing unbacked balances or accounting drift.

SECURITY SPECENFORCED

Comprehensive Audit Trail

Append-only chronological records log all status transitions, administrative approvals, and webhook dispatches.

SECURITY SPECENFORCED
Governance

Governance & Security Standards

Clear protocols designed to protect merchant operations and maintain regulatory compliance.

Identity & Permissions

  • Role-based access permissions (RBAC)
  • Multi-user team management
  • Session expiry and automatic timeouts
  • IP address restriction options
STANDARD SPECIFICATION

Network & API Security

  • TLS 1.3 encrypted data transit
  • Strict server-side key verification
  • HMAC-SHA256 signature validation
  • Protected webhook delivery endpoints
STANDARD SPECIFICATION

Audit & Record Keeping

  • Chronological transaction logging
  • Detailed webhook delivery audit trail
  • Filtered logs for internal audits
  • Exportable financial reporting
STANDARD SPECIFICATION

Explore PayFlow's Security Framework

Our team is available to discuss security requirements, architectural specifications, or compliance standards for your business.