TL;DR: Attackers exploit payment iframes using malicious overlays, compromising credit card data security. Traditional defenses like CSP and X-Frame-Options fail; real-time monitoring and more robust strategies are essential to protect against evolving threats. A six-step defense approach, including strict CSP, iframe monitoring, and secure postMessage handling, is recommended for effective protection.
https://thehackernews.com/2025/09/iframe-security-exposed-blind-spot.html