Mobile Browser (In)security

### Executive Summary This commentary notes Apple’s introduction of anti-phishing functionality in Mobile Safari with iPhone OS 3.0 and compares security features across desktop and mobile browsers — covering phishing filters, malicious-URL denylists, EV SSL, XSS protections, and clickjacking — concluding that mobile browsers have lacked security primarily because security is often sacrificed for time-to-market rather than because of technical limitations or low usage.