Enterprise-Grade Security
Every layer of PCI Proxy EU is engineered to protect cardholder data, from FIPS 140-2 Level 3 hardware security modules to AES-256 encryption at rest, TLS 1.3 in transit, and 24/7 threat monitoring across European data centres.
PCI DSS Level 1 Certified
The most stringent tier - applied to organisations handling over six million card transactions per year and requiring the highest bar of security controls.
Annual QSA Audit
On-site audit by a Qualified Security Assessor every year. The resulting Report on Compliance is submitted to card networks, confirming adherence to all 300+ PCI DSS controls.
Quarterly ASV Scans
Approved Scanning Vendors probe all public-facing IPs and domains quarterly. Any finding above CVSS 4.0 must be remediated before the next scan window opens.
Attestation of Compliance
Our AoC is available for customers to reference in their own assessments. Because we handle the cardholder data environment, your PCI scope is reduced dramatically.
European Data Residency
All cardholder data processed by PCI Proxy EU is stored exclusively within the European Union. No card data is ever transferred to, processed in, or replicated outside EU borders, ensuring full compliance with GDPR and data sovereignty requirements.
GDPR-Compliant by Design
Our infrastructure is architected to meet every requirement of the General Data Protection Regulation. Data processing agreements, data protection impact assessments, and lawful bases for processing are built into our operational framework from day one.
Tier IV Data Centres
Our primary and disaster-recovery data centres are located in Germany and the Netherlands, operating at Tier IV availability (99.995% uptime). Each facility features redundant power, cooling, and network connectivity with physically separated fire zones.
No Third-Country Transfers
We do not use cloud sub-processors based outside the EU for cardholder data operations. All encryption keys, tokenization mappings, and audit logs remain within EU jurisdiction, eliminating Schrems II transfer risk entirely.
Data Residency Guarantee
Multi-Layer Encryption
Cardholder data is encrypted at rest and in transit using industry-leading algorithms. No unencrypted card data ever exists outside the HSM boundary.
AES-256 at Rest
GCM ModeAll stored cardholder data is encrypted using AES-256-GCM. Individual PANs are encrypted with unique data encryption keys (DEKs), wrapped by a master key stored inside the HSM - envelope encryption ensuring no key material ever exists in plaintext.
TLS 1.3 in Transit
ECDHE Forward SecrecyEvery connection uses TLS 1.3 exclusively. Older protocol versions (TLS 1.0, 1.1, 1.2) are disabled. ECDHE key exchange enforces forward secrecy - past session data stays protected even if a long-term key is later compromised.
Key Rotation Policies
Zero DowntimeMaster encryption keys rotate annually as mandated by PCI DSS. DEKs rotate on demand or on a configurable schedule. During rotation, all ciphertexts are re-encrypted transparently - no downtime, no API changes for your integration.
AES-256
Encryption Standard
TLS 1.3
Transport Protocol
Annual
Key Rotation
Hardware Security Modules (HSM)
At the heart of PCI Proxy EU's cryptographic operations sit FIPS 140-2 Level 3 certified HSMs, dedicated tamper-evident hardware appliances that generate, store, and manage encryption keys in a physically isolated environment.
FIPS 140-2 Level 3
Our HSMs meet FIPS 140-2 Level 3, which requires physical tamper-evidence mechanisms, identity-based authentication, and a clear separation between interfaces that input and output critical security parameters. Any attempt to physically penetrate the device triggers automatic key zeroisation.
Key Management Lifecycle
Keys are generated inside the HSM using a certified true random number generator (TRNG). They are never exported in plaintext. The full lifecycle, generation, distribution, storage, rotation, and destruction, occurs within the HSM's cryptographic boundary.
Tamper-Evident Hardware
Each HSM is housed in a tamper-evident enclosure with active anti-tamper meshes, temperature sensors, and voltage monitors. If any environmental parameter moves outside the defined operational range, all stored key material is irreversibly destroyed.
HSM in the Architecture
Real-Time Fraud Prevention
Beyond encryption and tokenization, PCI Proxy EU applies multiple layers of fraud detection to every request passing through the platform, catching suspicious patterns before they escalate into incidents.
Velocity Checks
Automated rate-limiting rules detect unusual bursts of tokenization or de-tokenization requests from a single merchant, IP address, or API key. Thresholds are configurable per account and trigger automatic temporary blocks with real-time alerts to your security team.
Pattern Detection
Machine-learning models analyse historical request patterns to identify anomalies such as sequential BIN testing, geographic inconsistencies, or unusual de-tokenization volumes. Flagged requests are held for review or automatically rejected depending on your risk policy configuration.
Anomaly Monitoring
Our Security Operations Centre continuously monitors all system metrics, API latency, error rates, authentication failures, and data access patterns. Deviations from baseline behaviour trigger escalation workflows that include automated containment and human review within minutes.
Penetration Testing & Security Audits
Independent third-party firms rigorously test our platform. Controls verified to exceed industry benchmarks every cycle.
CREST Penetration Tests
Bi-annual tests by CREST-accredited firms covering network, API, OWASP Top 10, and segmentation. All findings remediated within SLA and verified via re-testing.
Vulnerability Management
Weekly internal scans across all components. Critical (CVSS 9.0+) patched in 24h, high-severity in 72h. Aligned with NIST SP 800-40 and CI/CD integrated.
SOC 2 Type II Reporting
Annual reports covering Security, Availability, and Confidentiality. Audited by independent CPA firms. Available to customers under NDA upon request.
Secure Development (SDLC)
Mandatory peer review, SAST, and DAST for every code change. OWASP SAMM guidelines with threat modelling for every change touching the cardholder data environment.
Incident Response & Monitoring
Any security event is detected, contained, and resolved at speed - with full transparency to affected customers.
Monitoring
SIEM-based real-time correlation across all infrastructure layers
Initial Triage
Severity classification and containment initiated within 15 minutes
Notification
Customers notified within 72h per GDPR Art. 33 and PCI DSS
Root Cause Analysis
Blameless post-mortem with corrective action plans for stakeholders
SLA Guarantee: 99.95% uptime with automated failover. Any incident affecting production is escalated to senior engineering within 5 minutes of detection.
99.95% Uptime SLACertifications & Standards
PCI Proxy EU maintains a comprehensive portfolio of security certifications and adheres to internationally recognised frameworks.
PCI DSS Level 1
Highest compliance tier
FIPS 140-2 L3
HSM hardware certification
SOC 2 Type II
Audited internal controls
GDPR
EU data protection
Annual QSA Audit
Full Report on Compliance (RoC)
Quarterly ASV Scans
External vulnerability scanning
Bi-Annual Pen Tests
CREST-accredited third parties
Protect Your Card Data with Enterprise-Grade Security
See how PCI Proxy EU's security architecture reduces your compliance burden and protects cardholder data at every layer.