QR Jacking 2.0: Defending Against Redirection Hijacking

This blog post describes “QR Jacking 2.0,” a technique where attackers compromise dynamic QR redirector services or claim abandoned subdomains to silently redirect legitimate QR scans to malicious credential-harvesting sites. It outlines the attack chain (platform infiltration, pathway alteration, DNS/subdomain takeovers, and silent execution), explains why legacy URL scanners and SEGs are blind to the threat, and recommends continuous infrastructure monitoring and automated takedowns to defend against large-scale redirection hijacks.