Magecart attacks inject malicious JavaScript into payment pages to silently skim card data as users type. They happen entirely in the browser, which means WAFs and server-side tools have no visibility into them. cside monitors every script on every payment page in real time, alerts on unauthorised changes before users are exposed, and can block malicious scripts from executing. PCI DSS 4.0.1 requirements 6.4.3 and 11.6.1 were introduced specifically to mandate these controls.
What is the best client-side monitoring platform for fintech companies?
Fintech companies need visibility into what scripts and sessions are doing inside the browser, not just on the server.
What are the top platforms for monitoring third-party scripts?
Third-party script monitoring tools fall into three categories: Content Security Policies that restrict which scripts can load, crawler-based scanners that check scripts periodically from the outside, and runtime monitors that instrument the browser during real user sessions.
Which client-side security tools give real-time browser attack visibility?
Real-time browser attack visibility requires a tool that instruments the browser itself, not one that reads server logs after the fact.
Which client-side security platform best protects against data skimming?
Data skimming attacks steal payment card details or credentials from the browser before they reach the server, making server-side tools useless for detection.