Introduction Digital skimming has evolved. What started as crude JavaScript injected into checkout pages is now a sophisticated, evasive threat that mimics legitimate site behavior. In 2025, Magecart groups, formjackers, and clone script attackers are not just stealing data — they’re blending in. This blog explores the current landscape of client-side skimming and how to…
Introduction You’ve vetted your payment provider. You follow OWASP guidelines. You even run backend vulnerability scans regularly. But attackers are now breaching you through someone else’s code — code you include from third-party domains, CDNs, and tracking services. Client-side supply chain attacks are on the rise, and traditional security tools don’t catch them. This post…
Introduction Many merchants believe that by using a hosted payment solution like Stripe Checkout, Shopify, or PayPal, they’re fully offloading PCI compliance risk. But that assumption is dangerously incomplete. Using a hosted payment page does not eliminate client-side security responsibilities. You may not handle the card number directly — but attackers don’t need you to….
Introduction Traditional PCI compliance is built around point-in-time assessments — quarterly scans, annual audits, checklist reviews. But the web isn’t static, and attackers don’t wait for your next audit window. This blog explores why snapshot-based compliance isn’t enough and how Breachfin brings real-time, continuous visibility that complements — and often surpasses — conventional approaches. The…
Introduction A PCI DSS audit can be demanding, especially with new requirements introduced in version 4.0. Instead of manually collecting disparate logs and screenshots, you can streamline much of the evidence-gathering with Breachfin. This blog explains how Breachfin’s features help you meet specific PCI DSS requirements, document proof, and respond confidently to QSA inquiries. Relevant…
Introduction Many e-commerce merchants underestimate the scope of their PCI compliance responsibilities, misclassifying themselves under the wrong Self-Assessment Questionnaire (SAQ). The most common confusion is between SAQ A and SAQ A-EP. Misclassification can lead to security blind spots and failed audits. Here’s how to identify your true category and what each requires. SAQ A: Fully…
Introduction PCI DSS version 4.0 is now the standard, and its most impactful changes go live in March 2025. For businesses that handle cardholder data, whether directly or indirectly, these deadlines carry significant operational and security implications. This blog outlines the major changes, what’s already required, and what becomes mandatory in 2025. Key Timeline Critical…
Your SIEM, WAF, and EDR tools work overtime to protect your infrastructure. But what about your browser layer? Here’s the difference: Layer Server-Side Tools Client-Side Monitoring (Breachfin) Sees Requests ✅ Yes 🚫 No Sees Scripts 🚫 No ✅ Yes DOM Changes 🚫 No ✅ Yes Real User View 🚫 No ✅ Yes Detects Magecart 🚫…
Some JavaScript functions are just more dangerous.These 5 are common in obfuscated, injected, or malicious scripts: 1. eval() Executes any string as JavaScript. eval(“alert(‘hacked’)”); 🔴 Widely abused in skimmers and obfuscation layers. 2. Function() Dynamic code constructor. let f = new Function(“return 2+2”); 🔴 Same risks as eval, harder to detect. 3. setTimeout() with strings…
You probably use CDNs like: These offer performance and reliability — but they also introduce third-party trust risks. How CDNs Become Attack Vectors CDNs host code — not security teams.If one of the following happens: Your site will load malicious code immediately, no deploy required. The Breachfin Approach We treat CDNs as external attack surfaces:…
