In a comprehensive study of the password security policies of 100 e-commerce websites, Apple was the only site to receive a perfect score of 100. Conducted by password-management company Dashlane (via Ars Technica), the Personal Data Security in E-Commerce Security Roundup [PDF] examined the password policies at various sites using 24 different criteria like acceptance of weak passwords and whether or not entry is blocked after failed attempts. The roundup assesses the password policies of the top 100 e-commerce sites in the
