The 50 Most Common Four-Digit PIN Numbers Leaked on the Dark Web : The Hearty Soul

Many people still rely on weak and predictable four-digit PIN numbers to protect their sensitive information. In an age where digital security is more important than ever, cybercriminals are well aware of these common patterns, making it easier for them to crack accounts and gain access. Recent data leaks on the dark web have revealed the most commonly used PIN numbers, exposing just how many people choose easy-to-guess combinations.

Using a weak PIN number can be a major security issue. With billions of information leaked in security breaches each year, it’s becoming increasingly hard to avoid becoming a target. Hackers rely on algorithms and databases filled with commonly used codes, meaning a simple PIN number could leave your bank account, phone, or other personal accounts at risk. Despite repeated warnings from security experts, many people continue to use PIN numbers like “1234” or “0000” out of convenience, unknowingly putting themselves in danger.

Understanding the risks associated with common PIN numbers is the first step toward improving your digital security. By examining which PINs appear most frequently in data breaches, individuals can make smarter choices and take action to protect their accounts. If your PIN number is on the list of commonly leaked codes, it may be time to make a change before it’s too late. A recent analysis by the Australian Broadcasting Corporation (ABC), using data from HaveIBeenPwned.com, which contains over 320 million passwords and PINs from previous breaches, revealed 50 of the most common PIN numbers.

Steps to Take If Your PIN Is Among the Most Common

Persons hand entering PIN number on touchscreen — Credit: Pexels

If your PIN number is on the list of commonly leaked codes, changing it immediately is crucial. By following the tips in this article, it will allow you to make the best choices. Enabling two-factor authentication (2FA) where possible, adds an extra layer of protection, making it harder for cybercriminals to gain access even if they obtain your PIN. Regularly updating your PIN number and monitoring your accounts can further help to protect your personal information from potential threats.

Why Using Common PIN Numbers Puts Your Security at Risk

Cyber hacker analyzing numbers on a computer screen — Credit: Pexels

Using common PIN numbers makes your accounts an easy target for hackers who rely on automated tools to crack weak codes in seconds. Simple combinations like “1234” or “0000” are the first tried in brute-force attacks, leaving bank accounts, phones, and other sensitive data vulnerable. Once exposed to a data breach, these PINs can be exploited across multiple platforms, increasing the risk of identity theft and financial loss. Cybercriminals count on people reusing easy-to-guess codes, making it essential to choose a more unique and unpredictable PIN number to protect your personal security.

The Psychology Behind Commonly Chosen PIN Numbers

Credit: Pexels

People tend to choose PIN numbers that are easy to remember, often relying on familiar patterns like “1234,” repeated digits, or significant dates such as birthdays or anniversaries. People prefer this method as it puts their mind at ease—our brains naturally favor numbers that require minimal effort to recall. However, this comes at a cost, as predictable PIN numbers are the first ones hackers attempt. Understanding this can help individuals make more conscious security choices, opting for less obvious combinations that are harder for cybercriminals to guess.

Tips for Creating Stronger, More Secure PINs

Person holding a bank card while typing on a laptop — Credit: Pexels

Create a PIN number that spells a four-letter word. For example, BEAR would be “2327” on your phone’s number pad.
Use different PIN numbers for multiple accounts. This will make it harder for hackers to gain access to all of your information.
Use a password management application. There are plenty of these available online today.
Replace letters and numbers with symbols. For example, “0” can replace O, “$” can replace S.
If you are able to create a longer PIN number than 4 digits, it is advised to do so. Also, incorporating a mix of letters (upper and lowercase), numbers, and symbols will give your PIN number added security.

What not to do when creating your PIN numbers

Person holding a bank card while typing on a keyboard — Credit: Pexels

Do not use your license plate, birthdate, the last four digits of your card number, or any other numbers that could compromise your identity.
Avoid choosing PIN numbers that involve a number sequence or repeating the same number, such as 0000, 1234, 5555, and 2121.
You don’t want a cybercriminal to crack your PIN just by recognizing common keypad patterns. Avoid easily guessable sequences like “2580” (straight down the keypad) or “1379” (diagonal corners), as these are among the first combinations hackers try.
Never record your PIN number on a scrap piece of paper in your wallet or on your card. This can be easily found by others.

How to Check If Your PIN Number Has Been Compromised

mobile phone that shows a notification from baking application — Credit: Pexels

To check if your PIN has been compromised, start by checking security alerts from your bank or service providers. If you notice unauthorized transactions or failed login attempts, it could be a sign that your PIN has been exposed. Also, be cautious of phishing scams or suspicious messages requesting PIN verification. Banks will never ask you for your PIN number over email or messages.

The Future of PIN Security: Are Passwords and Codes Becoming Obsolete?

human hand presenting finger to a biometric system — Credit: Pexels

As technology advances, traditional PIN numbers and passwords are gradually being replaced by more secure methods. Biometric security, such as fingerprint scans, facial recognition, and voice authentication, is becoming more common, making it harder for hackers. Multi-factor authentication (MFA) and hardware security keys are also improving digital security, reducing reliance on easily guessed codes. While PIN numbers and passwords are still widely used, the future of security is changing for the better, making it harder for cybercriminals to gain access.

50 most common four-digit PIN numbers

chart showing 50 most common four- digital PIN numbers — *Stats Credit: ABC via HaveIBeenPwned.com*

If your PIN number matches any of the commonly leaked codes, it’s time to rethink your security. Switching to a less predictable combination can significantly improve the safety of your phone and debit card, even if it takes some time to memorize.