Penetration Testing

for Banks

Bank Penetration Testing by Researchers With 150+ Published CVEs and 10 Years of Experience Testing Financial Institutions

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Bank Penetration Testing That Reduces Risk

Why most bank penetration testing fails to reduce risk:

Development teams get reports they can't act on

Security leaders spend weeks arguing about priorities

Boards receive technical documents without business context

We show you what breaks, how it breaks, and what customer data is exposed

Why Banks Choose AFINE for Penetration Testing

We've spent 10 years penetration testing major European banks in production and found hundreds of critical vulnerabilities. You get researchers who know what breaks in core banking infrastructure, and reports that show exactly how we exploited your environment. Each finding includes working proof-of-concept and business impact.

10 Years

Testing banks in production

Zero major incidents

Across hundreds of banking security assessments

150+ CVEs

Published in enterprise software

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Research Background

We've found and published 150+ CVEs in enterprise software that banks use:

  • CVE-2025-24870: SAP GUI vulnerability
  • CVE-2023-45182: IBM platform password vulnerability
  • CVE-2024-10864: OpenText authentication SQL injection

When we perform bank penetration testing on your infrastructure, we apply the same vulnerability research methodology that finds 0-days in enterprise software your bank depends on.

SAP security alert for CVE-2025-24870 showing a critical threat level with details on insecure secrets management and risk to banking transactions and enterprise data.
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Your Bank Penetration Testers

Our team holds OSCP, OSCE, OSEP, OSWE certifications at minimum.

When we're testing banking systems, we know how critical data security is. That's why you work with a permanent team, not freelancers. Your most sensitive data stays with people you can trust.

Bank Penetration Testing Reports

Security testing only matters if your developers can fix things immediately.

Every vulnerability includes a proof-of-concept showing the attack vector we used. We explain the technical details your security team needs and translate the business impact for leadership decision-making.

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Our Services

What We Cover in Bank Penetration Testing

Digital Banking Platforms

We manually test authentication and authorization mechanisms across different user types. This includes reviewing cryptographic implementation and password handling practices. We analyze business logic in transaction processing to find flaws that compromise financial operations.

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Mobile Banking Apps

We reverse engineer applications to understand actual behavior versus documentation. Test data storage, crypto implementation, and traffic interception. Verify security on jailbroken/rooted devices. Authentication and authorization across different device states.

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Payment and Transaction APIs

We enumerate endpoints and test authorization boundaries between users and transactions. Analyze transaction flows under concurrent load for race conditions. Check business logic flaws specific to financial transaction processing. Test API authentication and rate limiting.

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Core Banking Systems

We simulate breach scenarios from internet-facing systems to core infrastructure. Test network segmentation, privilege escalation paths, database access controls, and administrative interfaces. Review source code for custom banking applications - memory corruption, type conversion issues, race conditions, and architectural problems only visible by reading code.

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Third-Party Integrations and Operational Technology

We assess security at integration points and trust boundaries. Test authorization across partner connections, SWIFT messaging security, and network segregation. Evaluate OT infrastructure including building systems, security cameras, and access control. Check whether IT and OT networks are actually segregated and if physical security systems have digital vulnerabilities.

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ATM and Hardware Security Testing

We test physical devices and embedded systems. Analyze ATM firmware, payment terminals, HSM configurations, and NFC/RFID protocols. Test for backdoors, unauthorized code, communication protocol vulnerabilities, and resistance to physical attacks. Hardware compromises persist longer than software bugs.

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Social Engineering Testing for Banks

We run spear phishing against privileged users, phone-based social engineering, and physical access attempts. Insider threat simulations show what happens when legitimate access gets abused. Test employee awareness with realistic scenarios specific to banking operations and actual user access levels.

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The Enterprise Security Software We Hacked

Our bank penetration testing discovers vulnerabilities in the platforms that major banks depend on. We exploit both known CVEs and the vulnerabilities nobody's documented yet.

CVE-2020-1569
Threat level
Critical

Memory corruption in Microsoft Edge (EdgeHTML) allows remote code execution via crafted web content

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CVE-2020-5920
Threat level
Critical

SQL injection in F5 BIG-IP AFM (Advanced Firewall Manager) allows database attacks on security appliance

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CVE-2023-45182
Threat level
Critical

Weak password encryption in IBM i Access Client Solutions allows attackers to decrypt stored passwords and access connected systems

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View All CVEs We've Published

The AFINE Adaptive Security Framework (AASF)

A framework developed from a decade of security assessments and continuously refined as attack methods evolve. Our methodology reflects current threat patterns and the practical security decisions organizations face as their attack surface expands.

Fix-It Roadmap

Remediation prioritized by exploitability in your banking environment. You get CVSS scores and see which attack paths expose customer financial data and compromise core banking systems.

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Testing Built for Your Infrastructure

We test in isolated environments or schedule around critical business periods and regulatory audits. We coordinate directly with your security teams throughout the assessment.

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Dual-Track Reporting

Security engineers get exploitation details and attack paths. Leadership gets business impact covering compliance, data risk, and operational continuity.

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Immediate Risk Intelligence

Critical discoveries during bank penetration testing reach you within 48 hours. You understand risk exposure as testing progresses.

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Fix-It Roadmap

Remediation prioritized by exploitability in your environment. You get CVSS scores and attack chain documentation showing what adversaries would target first in your payment infrastructure.

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Tailored Red Team Engagement

Red team security testing methodology tailored to your cloud-native architecture, API landscape, and regulatory requirements.

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Dual-Track Reporting

Security engineers receive exploitation details and proof-of-concept code. Leadership receives business impact analysis covering operational risk, safety exposure, and regulatory compliance.

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Immediate Risk Intelligence

Authorized stakeholders receive confidential briefings on critical findings during red team security testing. You see what we've compromised and potential business impact as testing progresses.

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Fix-It Roadmap

Priority-ranked remediation based on exploitability in your specific environment - not just CVSS scores in isolation. We give you specific implementation guidance so your teams know exactly what to fix, how to approach it, and why it matters for your setup.

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Security Engagement Designed for Your Organization

We build our approach around your specific architecture, threat landscape, and how your business actually operates.

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Dual-Track Reporting

Your technical teams get the full exploitation details and working proof-of-concepts they need. Leadership gets business impact: regulatory exposure, operational risk, revenue implications. No one's stuck playing translator.

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Immediate Risk Intelligence

Critical findings come to you within 48 hours. We don't bury them in a final report you'll see weeks later. Your teams can start fixing immediately.

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We’re ready to deliver next-level security

Why Organizations Trust Us

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AFINE moved from third-choice pentesting supplier to first-choice partner. They keep finding important, and in a few cases even critical issues in places where other pentesters have not found them.

Cedomir Karlicic

Head of Security

,

Isabel Group

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AFINE has been our security testing partner since 2020, consistently delivering exceptional results. Their team identifies advanced vulnerabilities that significantly strengthen our security posture. Reports clearly explain risks with actionable detail for rapid remediation. They consistently meet our aggressive deadlines while maintaining flexibility. Highly recommended as a trusted cybersecurity partner.

Jacek Skorupka

Group Cybersecurity Director

,

Medicover‍

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I am super impressed. This is really thorough. You have uncovered vulnerabilities that our previous pentest failed to detect. Incredible work. Thank you very much!

Kevin Cadman

KingMakers

,

Director of DevOps & Infrastructure

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We've partnered with AFINE for over 5 years, during which they've conducted dozens of security audits for BGK - including penetration tests, security analyses, abuse testing, and source code reviews. Their work consistently meets the highest standards, delivers on time, and provides excellent value. I highly recommend AFINE for their professionalism, flexibility, and collaborative approach.

Krzysztof Murawski

Department of Security

,

Bank Gospodarstwa Krajowego

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The AFINE team performed application analysis and tests of IT environments for us. Provision of services - at the highest level. Information received and knowledge transferred - priceless. I recommend it with a clear conscience, although you have to be prepared for strong impressions.

Marek Krzyżanowski

IT Director

,

Apator Group

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AFINE delivered sharply prioritized, high-impact findings that allowed us to focus our security efforts exactly where they mattered most. There was no wasted time on low-risk noise - only clear, actionable issues with real business relevance. The engagement was efficient, communication was excellent, and the return on investment was immediately evident.

Artur Maliszewski

CIO

,

Tpay

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Find out what people are saying about us

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Bank Penetration Testing FAQ

How flexible is AFINE regarding bank penetration testing timelines and adjustments?

We adapt to your operational reality. If testing uncovers additional attack surface or integration points, we discuss scope adjustments transparently. We coordinate testing windows around your critical business periods and can pause or reschedule if needed.

What compliance frameworks does AFINE's bank penetration testing support?

Our bank penetration testing methodology supports DORA (Digital Operational Resilience Act), TIBER-EU, PCI DSS, ISO 27001, and requirements from financial regulators including ECB, KNF, and FCA. We structure bank penetration testing to meet regulatory frequency requirements and provide documentation that satisfies auditors.

How much does bank penetration testing cost?

Bank penetration testing costs depend on scope and complexity. A single core banking application assessment typically ranges from $18,000 to $30,000+. Comprehensive testing covering multiple systems, payment infrastructure, APIs, and mobile applications ranges from $60,000 to $350,000+. Full infrastructure assessments with red team exercises and TIBER-EU compliance can exceed $500,000. We provide transparent pricing during consultation based on your specific environment and requirements.

Does AFINE have experience testing core banking systems in production?

Yes. We've spent 10 years conducting bank penetration testing for major European financial institutions including PKO BP, ING Bank, BGK, Bank BPS, and other major banks. We've completed hundreds of banking security assessments in production environments with zero major incidents. Our researchers understand core banking infrastructure, payment systems, SWIFT messaging, and regulatory requirements specific to financial institutions. We know how to test live transaction systems safely without disrupting operations.

Let's Discuss Your Security Posture

We scope every bank penetration testing engagement based on your systems and compliance requirements. Book a consultation below to discuss your needs.

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