Password Generator

How to Create and Protect a Secure Password

Creating a Strong Password

A secure password helps protect your personal information and online accounts from unauthorized access. The following guidelines can help you create a strong password:

✔ Use a mix of characters:

• Lowercase letters (a-z)
• Uppercase letters (A-Z)
• Numbers (0-9)
• Symbols (!@#$%^&*()…)

✔ Avoid easily guessed information:

• Personal details (name, birthday, phone number, address)
• Commonly used passwords (e.g., “password,” “123456,” “qwerty”)
• Company or institution names and abbreviations
• Standard number formats like dates or license plate numbers

✔ Consider length and complexity:

• Many password policies require a minimum length (typically 8+ characters), but longer passwords are generally more secure
• The more varied the character types, the stronger the password

🔹 Optional: When generating a random password, you may want to exclude ambiguous characters (such as “I,” “l,” and “1”), which can be difficult to distinguish in some fonts. However, keep in mind that removing characters slightly reduces password strength.

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Understanding Password Entropy

Password entropy measures password strength in bits. The higher the entropy, the harder it is to crack. In a brute force attack (where all possible combinations are tried), a password with 100-bit entropy would require 2¹⁰⁰ attempts to exhaust all possibilities. On average, half of those attempts would be needed to guess the correct password.

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How to Protect Your Password

Even the strongest password is useless if it falls into the wrong hands. Here are some best practices to protect your passwords:

🔒 Do not share your password:

• The more people who know your password, the higher the risk of compromise—even if they have no malicious intent.

🔒 Use different passwords for different accounts:

• If one account is breached, using unique passwords ensures your other accounts remain safe.
• Consider using a password manager to securely store and manage passwords.

🔒 Change your passwords regularly:

• If someone gains access to your account without your knowledge, periodic password changes can limit their access time.
• This is especially useful if you’ve ever saved a password on an old device you no longer own.

🔒 Never save passwords on public or shared devices:

• Avoid saving passwords on browsers, especially on public computers or unsecured networks.

🔒 Do not store passwords in obvious places:

• Avoid keeping written lists, text files, or phone notes labeled “Passwords.” If you must store them, use a secure password manager instead.

By following these best practices, you can significantly improve the security of your online accounts and personal data.