Billions in Assets at Risk from One Bad Script
Client-side attacks (such as e-skimming) are now the leading cause of stolen payment card data.
Trading interfaces, KYC forms, and payment pages are lucrative targets for attackers.
Global standards like PCI DSS are holding companies accountable for risks introduced by 3rd party scripts.
Our hybrid proxy monitors the activity of every script, preventing malicious code from stealing wallet or payment data.
Our hybrid proxy monitors the activity of every script, preventing malicious code from stealing wallet or payment data.
PCI 6.4.3 & 11.6.1 requirements with script inventory, change detection, justifications, and audit-ready reports.
Identify what personal data each third-party script has access to and where it's sent. Stay compliant with GDPR and prevent PII leaks.
Reduce friendly fraud (chargebacks) with device fingerprinting as evidence to block disputes.
High value transactions make every compromised browser session a lucrative target
Registration flows KYC and personal data that can be harvested
Third party services (trading widgets, analytics, integrations) expand the attack surface
Client-side scripts often touch wallet IDs, private keys, and addresses
"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 readiness report, uncover blindspots in your current architecture, and put together a timeline for your use case.
Common Client-Side Attacks for Crypto Platforms
Code hidden in checkout or deposit forms silently capture wallet IDs or card numbers
Attackers purchase expired domains of scripts to change code behavior without detection
A breach in one of your trusted providers (analytics or integrations) can infect your entire site.
Advanced threat actors target sessions with specific criteria (e.g. high value trades) 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 |