If you were a client of Chestertons on or before November 2022, your data might have been compromised.
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Overview
In January 2023, London-based estate agency Chestertons experienced a data breach following a cyberattack. According to the ransomware group claiming to be behind the breach, approximately 750,000 data rows were compromised.
This included customer:
If this information is used maliciously, the consequences could be devastating for victims of this breach. As such, customers of the estate agency should be vigilant.
Lawyers have launched compensation claims on behalf of affected Chesterton customers. They are helping victims of this breach seek compensation for any distress or financial harm caused. Worryingly, they believe some impacted individuals may not have been told about the breach.
We are monitoring the situation closely. Register your interest and we’ll keep you updated if one of our regulated UK partner law firms is able to take this claim forward.
Chestertons data breach – At a glance
What do we know about the Chestertons data breach?
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Latest updates on the Chestertons data breach
Mid–late 2023 to 2025
Legal efforts, including claims via no-win, no-fee arrangements, are initiated to seek compensation for those affected.
11 January 2023
CSL officially became aware of the breach.
9 January 2023
By this date, the ransomware group responsible had publicly posted sample data online.
30 November 2022
Cybersecurity experts identify this date as a timestamp on the stolen data, suggesting this is when the breach may have begun.
We’ll provide more updates on the Chestertons data breach as they occur.
Who could be affected by the Chestertons data breach?
If you were a client of Chestertons on or before November 2022, your data may have been exposed.
Frequently asked questions
Chestertons, a well-known London estate agent, suffered a cyberattack in early 2023. Hackers got into their systems and accessed files containing personal information about customers.
The breach included sensitive information such as names, addresses, phone numbers, dates of birth, and passport information. For some, bank and credit card information may also have been exposed.
Chestertons has said that it is contacting affected individuals. But if you’ve rented, bought, or sold property through Chestertons, or even made an enquiry, it’s worth checking if your data might have been involved.
The kind of data exposed could be used for identity theft or fraud. That might include taking out credit in your name, targeting you with scams, or using your ID documents illegally.
Yes. Even if no money was taken, the breach may still have caused stress, anxiety, or concern about your privacy. Your personal data should have been safeguarded — and when it isn’t, that’s a serious issue.
We are not a law firm. Our role is to keep people informed about potential group actions if one of our regulated UK partner law firms is able to take this claim forward.
No. Registering simply means you’ll receive updates. If a law firm later takes on the case, you’ll be given the option to learn more about the process and any potential costs before deciding whether to take part.
A group action claim allows people affected by the same issue to take action together. This strength in numbers helps stand up to big organisations. Join the Claim helps connect people with law firms so these actions have real impact.
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