SquareX Shows AI Browsers Fall Prey to OAuth Attacks, Malware Downloads and Malicious Link Distribution

PALO ALTO, Calif., Oct. 9, 2025 -- As AI Browsers rapidly gain adoption across enterprises, SquareX has released critical security research exposing major vulnerabilities that could allow attackers to exploit AI Browsers to exfiltrate sensitive data, distribute malware and gain unauthorized access to enterprise SaaS apps. The timing of this disclosure is particularly significant as major companies including OpenAI, Microsoft, Google and The Browser Company have announced or released their own AI browsers. With Chrome and Edge alone representing 70% of the browser market share, it is very likely that the majority of consumer browsers in the future will be AI Browsers. Thus, it is critical for organizations to prepare for these security risks associated with this fundamental change.