e-commerce's Biggest Blind Spot is in the Browser
E-skimming attacks tripled in 2024 as attackers evolved their tactics. They inject malicious code that silently captures payment data from your forms. Traditional security tools can't detect these sophisticated attacks that blend in with legitimate scripts. Learn how to stop Magecart attacks.
Legacy security tools like CSPs and crawlers fail to catch dynamic supply chain attacks. When trusted third-party services are compromised, attackers inject malicious code that evades detection by morphing in real-time.
PCI DSS 4.0 and GDPR now explicitly require monitoring of third-party scripts. Companies face increased liability and penalties when compromised scripts lead to data breaches, even if the scripts come from trusted vendors.
Our client-side intelligence protects your e-commerce and retail businesses from damaging client-side activities such as credit card skimming and providing evidence to dispute fraudulent chargebacks.
Payment pages handle credit card data
High-value customer data (addresses, phone numbers, and purchase history)
Checkout flows have multiple third-party dependencies
Seasonal traffic spikes mask malicious activity
Modern web apps load more code in the browser, widening the attack surface.
"cside tells me everything I need to know about a script, and makes sure they are safe to show to the user. It's really made me realize how big of a problem 3rd party script security is, and there are no other solutions I've tried that dive as deep as cside."
Our experts can conduct a client-side vulnerability assessment and provide a customized recommendation.
Common Client-Side Attacks for e-commerce & Retail
Code hidden in checkouts or forms silently capture card numbers, CVVs, and addresses
Attackers purchase expired domains of scripts on your site to change code from an approved source
A breach in one of your trusted providers (analytics or integrations) can infect your entire site
Advanced threats target sessions with specific criteria (e.g. IP address) to evade traditional detection
Unmonitored scripts exfiltrate sensitive personal information such as addresses and IDs
Injected ads or pop-ups inside the browser trick traders into clicking fraudulent links
Our hybrid proxy delivers advantages traditional tools can't match.
| vs. Crawler-Based Solutions | vs. Content-Security Policy (CSP) | vs. Client-Side Agents |
|---|---|---|
| Sees real user behavior, not sanitized crawler views | Monitors script payloads, not just sources | Undetectable monitoring attackers can't bypass |
| Catches attacks aimed at specific segments | Detects breaches at trusted third-party providers | Complete historical script behavior tracking |
| Detects threats between periodic scans | Handles dynamic scripts CSPs can't control | Future-proof against evolving techniques |