Penetration Test Prevents $3M Data Breach
Critical vulns found
12
THE CHALLENGE
A multi-location retail chain with 42 stores processing over 10,000 credit card transactions daily needed PCI DSS Level 2 compliance to continue processing payments with their acquiring bank. They had never conducted a penetration test and had no visibility into their actual security posture. Their e-commerce platform had been built five years ago by a development team that had since disbanded, and their POS systems were running end-of-life software across multiple locations. A recent industry report had named retail as the #2 most targeted sector for data breaches, and their acquiring bank was threatening to increase processing fees by 40% without PCI compliance.
OUR SOLUTION
Threat Contain performed comprehensive penetration testing across their POS systems at a sample of store locations, their e-commerce platform and payment processing pipeline, corporate network infrastructure, and employee-facing systems. We discovered a critical vulnerability in a legacy vendor management portal that provided unauthenticated access to a database containing 200,000+ customer payment records. Additional findings included hardcoded API keys in the e-commerce application, unpatched POS terminals vulnerable to known exploits, and weak network segmentation between stores and corporate. We provided detailed remediation guidance for all findings and worked alongside their IT team to implement fixes.
Scope & Reconnaissance
Mapped the complete attack surface including 14 retail locations, e-commerce platform, corporate network, POS systems, and third-party vendor integrations. Identified all external-facing assets and authentication mechanisms.
Multi-Vector Penetration Testing
Conducted external and internal network penetration testing, web application testing (OWASP Top 10), POS system assessment, wireless security testing, and social engineering simulations. Testing followed PTES methodology.
Critical Vulnerability Discovery
Discovered a SQL injection vulnerability in a legacy vendor portal that provided direct access to the customer database containing 200,000+ payment card records. This single finding justified the entire engagement cost by preventing an estimated $3M+ breach.
Remediation & Ongoing Program
Provided detailed remediation guidance for all 12 critical findings. Established a quarterly penetration testing cadence, implemented a vulnerability management program, and achieved PCI DSS Level 2 compliance.
THE RESULTS
- Critical vendor portal vulnerability discovered and remediated before exploitation
- Estimated $3M+ in breach costs, legal fees, and PCI fines avoided
- PCI DSS Level 2 compliance achieved, avoiding the 40% processing fee increase
- Ongoing quarterly penetration testing program established for continuous assurance
KEY METRICS
12
Critical vulns found
$3M+
Breach cost avoided
200K+
Records protected
Achieved
PCI compliance
42
Stores secured
CLIENT TESTIMONIAL
“The vulnerability they found in our legacy vendor portal could have exposed 200,000 customer records. If attackers had found it first, we would be looking at a $3 million breach and the end of our reputation. The ROI on that single pentest was incalculable.”
Amanda Torres
CFO, Cascade Retail Group
MORE SUCCESS STORIES
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