In a significant security breach RockYou2024, nearly 10 billion unique passwords have been leaked on a widely recognized cyber forum. This record-setting release of passwords was sourced from decades of data breaches and has the potential to be exploited in future attacks.

The database, named "rockyou2024.txt," reportedly contains nearly 10 billion unique passwords, collected from thousands of data leaks. This massive compilation surpasses the previous record holder RockYou2021 by adding 1.5 billion new passwords.

In response, Kaspersky's experts have issued practical guidance to help users protect themselves in the aftermath of the extensive data compromise:

Check the breach impact

When a data breach occurs, the first thing a user is advised to do is to check whether their data has been affected. Modern security solutions, such as Kaspersky Premium, enable the detection of leaked data and provide alerts to enhance security measures if necessary. As well as internal services, there are some public sources that could help to detect whether personal data has been leaked or not.

Change your passwords as soon as possible

In the event of a data breach, it is essential to change your passwords immediately and consider all other sites where the same password is being used. New passwords should be unique for each account, be at least 8 characters long, combine letters with numbers and symbols. In order to check whether a combination is strong enough, a password checker can be employed.   

Block and reissue your bank card, if necessary

If payment data was stored by a service that experienced a data breach, it is best to block and reissue a card for added security. Usually reissuing a bank card doesn’t take too much time and effort, therefore preventing a greater inconvenience.

Install a reliable password manager

A tool like this creates strong passwords and stores them securely in an encrypted vault. Besides, it is enabled to monitor data leaks and check if user’s passwords were compromised.

Don’t forget about two-factor authentication

Recent survey by Kaspersky revealed how easily compromised accounts can be without 2FA and strong passwords. To protect an account from unauthorized access, it is highly recommended to set up 2FA. This can be accomplished by receiving a confirmation via SMS, email, or using an authentication app or password manager that generates one-time codes.

Securely close unused accounts

If there are no plans to continue using a service after a data leak, it is advisable to delete the account and request the complete removal of all collected data by contacting technical support or the address in the Privacy Policy. This step, often outlined in the "Your Rights" section of legitimate services, can also reveal the extent of data exposure.

Share only the essential minimum of personal information online
As massive service leaks are not uncommon, it is recommended to minimize information provided to a service. When you register, using a main email address is unnecessary: auto-substitution can be used instead. Additionally, if not required, omit the real name and residence address.

About Kaspersky

Kaspersky is a global cybersecurity and digital privacy company founded in 1997. With over a billion devices protected to date from emerging cyberthreats and targeted attacks, Kaspersky’s deep threat intelligence and security expertise is constantly transforming into innovative solutions and services to protect businesses, critical infrastructure, governments and consumers around the globe. The company’s comprehensive security portfolio includes leading endpoint protection, specialized security products and services, as well as Cyber Immune solutions to fight sophisticated and evolving digital threats. We help over 220,000 corporate clients protect what matters most to them. Learn more at