Historic Data Breach: 26 Billion Records Leaked
News|by Leanne Bevan|23 January 2024
Has your data been breached?
Bob Dyachenko, a cyber security researcher and owner at SecurityDiscovery.com, together with the Cybernews team, has discovered billions of exposed records on an open instance. Unfortunately, the owner is unlikely ever to be identified.
This is thought to be one of the biggest data breaches to date.
The impact of this massive data breach could be unprecedented. Since many people reuse usernames and passwords, malicious actors could embark on a surge of credential-stuffing attacks.

Read more about the breach in this Cybernews article.
What does the breach mean for you?
First of all, change your password for all the affected sites mentioned above. As soon as possible. And keep your eye out for any suspicious behaviour.
You can check if your data was exposed in historic data breaches using the Cybernews data leak checker.
We’ll keep updating this blog with more information as and when we learn more.
Our cyber security recommendations
To protect your data going forward, we recommend you do the following both as an individual and as a business:
- Invest in a secure password manager to collate and create all your passwords securely – at Grey Matter, we offer Passwordstate, Keeper, and OnePassword.
- Use multi-factor authentication (MFA) to make it harder for hackers to get to your information – get in touch with us to discuss our options – Microsoft, ESET, and Sophos.
- Implement comprehensive cyber security awareness training to train staff on how to look out for phishing, password best practices, and more – at Grey Matter, we offer KnowBe4.
- Get a pen test and/or cyber security health check to see how secure your current infrastructure is – we can arrange a call with our partner Secure Impact to discuss these services further with you.
- Implement other security solutions you should have in place for multi-layered protection – endpoint security, patch management, and other security software.
Our team of cyber security solutions specialists are here to support you. Fill in the form now to arrange a consultation now.
Contact Grey Matter
If you have any questions or want some extra information, complete the form below and one of the team will be in touch ASAP. If you have a specific use case, please let us know and we'll help you find the right solution faster.
By submitting this form you are agreeing to our Privacy Policy and Website Terms of Use.
Author
Leanne Bevan
Vendor Marketing Manager at Grey Matter
Leanne has been part of our team for over a decade, and has worked as a vendor marketing manager for a number of our key vendors. Now with a keen focus on cyber security as well as developer technologies, Leanne continues to manage marketing across several vendors, including Embarcadero, Acronis, ESET, and more.
Related News
Developer stories: KM Software Systems Limited – Delphi, AI and developer recruitment
In this episode of our podcast, Grey Matter Talks Tech, our Embarcadero expert Robin Ashby sits down with Eduardo Andrade, Managing Director of KM Software Systems Limited (KMSS). They dive into his long-standing career in software development and the journey...
How to create an Azure Maps account
Learn how to create an Azure Maps account, retrieve authentication keys, and plan for secure, scalable Azure Maps usage from day one.
Introducing Kai for RAD Studio – Embarcadero’s agentic AI platform
AI has already transformed how developers write code – but what if it could do more than just assist? What if it could collaborate? That’s the thinking behind Kai, Embarcadero’s new agentic AI platform for Delphi, C++Builder and RAD Studio...
UK cyber security breaches survey – key insights for businesses
Cyber security rarely makes headlines unless something has gone badly wrong. But each year, the UK Government’s Cyber Security Breaches Survey offers a far more useful view – an honest snapshot of how organisations are really coping with cyber risk, day to day. ...