In July 2025, a 158-year-old company was destroyed and 700 people lost their jobs, all because of one weak password.
KNP, a major transport company in the UK, had all of its data encrypted and its internal systems locked after a hacker guessed one employee's password. However, they are not alone in being vulnerable to hacking due to weak passwords.
The most popular passwords in the world have stayed the same for decades. So, click on to find out the 100 most frequently discovered passwords, grouped together into some of the most predictable categories.