What is an insecure password?

An insecure passWord is one that is easily guessable or susceptible to brute-force attacks, such as common Words, phrases, or simple patterns (e.g., "123456," "passWord," or "qwerty"). It often lacks complexity, including a mix of uppercase and lowercase letters, numbers, and special characters. Additionally, using personal information like birthdays or names makes a passWord more vulnerable. To enhance security, passWords should be unique, lengthy, and complex.