Join the Southern WaterData Breach Claim

If you've been a Southern Water customer or employee, you could be eligible to seek compensation if your personal data was exposed in the 2024 data breach. If you've been affected, check your eligibility.
Pocket Claim has partnered with KP Law, a specialist law firm for data breach claims. You can check if you could be eligible to claim and seek compensation on a No-Win, No-Fee* basis.
In this matter, if it is successful, you will pay 25% of the amount that is recovered plus the cost of any After the Event Insurance. Termination fees may apply if you fail to co-operate with your lawyer or withdraw from the claim.
The first step in getting compensation
Answer a few short questions to check if you could be eligible to claim and seek compensation for the Southern Water data breach.
THE FACTS SO FAR
What do we know about the Southern Water data breach claim?
Sensitive customer information, including full names, dates of birth, National Insurance numbers, bank account details, sort codes, and reference numbers, has likely been accessed by cybercriminals in this attack.
Current and former employees of Southern Water may have had their HR documents and identity verification materials compromised, including passports, driving licences, and utility bills stored on company systems.
The cyberattack was executed by the notorious hacker collective Black Basta, a sophisticated criminal organisation that is reported to have successfully extorted over $100 million (circa £75m) in ransom payments since 2022.
Those impacted by the breach are strongly advised to stay vigilant for potential phishing attempts, identity fraud, and suspicious activity, and to report any suspected scams to the relevant authorities immediately.
If you've been impacted by this data breach, you may be entitled to compensation for the violation of your privacy rights.
Pocket Claim has partnered with KP Law, who will handle your claim on a no-win, no-fee basis, meaning there's no financial risk to you in pursuing the compensation you deserve.
FREQUENTLYASKED QUESTIONS
A statement from Southern Water says:
On Monday 12 February 2024 we announced that data from a limited part of Southern Water's server estate had been stolen and was at risk following an illegal intrusion into our IT systems. This arose from our ongoing investigation into suspicious activity, as detailed in our statement on 23 January 2024.
We are very sorry that this has happened.
We continue to work with our expert technical advisers to confirm whose data is at risk. Our initial assessment is that this is the case for some of our customers and current and former employees.
We have engaged leading independent cybersecurity experts to monitor the "dark web". They continue to report to us that, since we were named on the cyber criminals' site on 22 January 2024, they have found no new evidence of the data potentially involved in this cyber incident being published online. They will continue to carry out their checks for as long as is necessary.
We take data protection and information security very seriously and, in accordance with our regulatory obligations, we are making contact with anyone whose personal data may be at risk.
Based on our forensic investigations so far, which are ongoing, we are notifying in the order of 5 to 10 percent of our customer base to let them know that their personal data has been impacted. We are also notifying all of our current employees and some former employees.
These notifications include security advice, as well as guidance on recommended precautionary steps and details of the support we are offering them. This support includes enhanced Experian credit monitoring, free of charge, for the next 12 months. The service provides active monitoring which can detect and help prevent fraudulent misuse of personal information.
Throughout this process we have been working with Government, our regulators and the National Cyber Security Centre. We have also notified the police and the Information Commissioner's Office.
Since the incident, our IT security teams have worked with independent incident response experts, using enhanced monitoring and protection tools to check actively for any suspicious activity on our IT estate. Southern Water's operations and services to customers have not been impacted.
Further updates will be posted on our website and social media channels as we know more. Please be assured that if at any point we have reason to believe your data may be impacted, we will notify you, in line with our regulatory obligations.
If you have specific questions relating to the cyber incident then please call 0330 303 0025.
The following information is believed to have been accessed by cybercriminals:
- Name
- Dates of Birth
- National Insurance numbers
- Bank account numbers and sort codes
- Reference numbers
Employee and past employee data may also have been compromised, such as:
- HR documents
- Identity documents, such as passports, driving licenses and utility bills
This personal and financial information may have been stolen for sale on the dark web.

