Cross-site scripting attacks can leave private, critical information vulnerable to cyberattackers. Learn more about XSS attacks and how you can prevent them.

Illustration by Mark Todd In May, Web security consultant George Deglin discovered a cross-site scripting (XSS) exploit that involved Facebook’s controversial Instant Personalization feature ...

Cross-site scripting is a client-side code injection weakness where the trusted web page executes malicious JavaScript. That code runs in the victim’s browser and runs under the same permissions ...