Most cybersecurity experts recommend using unique passwords for every account. Yet millions of people continue using the same password, or slight variations of it, across multiple websites, apps, and services. From email accounts and streaming platforms to shopping sites and social media, password reuse remains surprisingly common despite years of security warnings.
Psychology suggests that this behavior isn't necessarily a sign of irresponsibility. Instead, it often reflects how the human brain manages memory, effort, risk, and daily decision-making. Researchers studying human behavior and cybersecurity have found that people frequently prioritize convenience and mental efficiency over long-term security.
