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Join the Southern Water data breach claim

Are you affected by the Southern Water data breach?

If so, Join the Claim to get the justice and compensation you deserve.

The data of some Southern Water customers and employees was breached following an “illegal intrusion” into the company’s IT systems. Criminals stole personal details and financial information, potentially with the intention of selling it on the dark web. The dark web is a hidden part of the internet often used for illicit activities. 

Hundreds of thousands of Southern Water customers, and thousands of current and former employees, could be at risk following the cyberattack. 

At a glance: what do we know about the Southern Water data breach?

  • Customer names, dates of birth, National Insurance numbers, bank account numbers, sort codes, and reference numbers have likely been accessed by cybercriminals 
  • The HR documents and identity documents (e.g. passports, driving licenses and utility bills) of current and former employees may also have been compromised 
  • The Southern Water data breach was carried out by hacker group Black Basta. The gang has raked in more than $100 million in ransom payments over just two years 
  • Individuals affected by the breach are urged to remain vigilant and report any suspected scams to the appropriate authorities. 

Are you affected? If so, you could be due compensation.

Are you eligible to join a Southern Water data breach compensation claim?

  • Have you been notified that your data may have been involved in the Southern Water data breach?

If yes, you could have a NO-WIN, NO- FEE Southern Water compensation claim.

Check your eligibility today. 

How it works

Check your eligibility

Our simple eligibility checker provides instant clarity. Answer a few straightforward questions, and you’ll know if you could qualify for a Southern Water data breach group action claim.

Register your interest

If you have a potential claim, register your interest and we’ll keep you updated about this case.

Join the Claim

Your matchmaker for justice, if eligible, we’ll pair you with a regulated law firm running a suitable claim.

Join the Claim

Find out if you could join a no-win, no-fee Southern Water data breach claim.  

It will only take a few minutes and there’s no obligation to proceed. 

Join the Southern Water data breach Сlaim

Check your eligibility and find out if you can join a no-win, no-fee Southern Water data breach claim. 

Latest updates on the Southern Water data breach

  • Jan 2024

    Criminals accessed Southern Water’s systems in a serious cyber incident. Southern Water only became aware of the violation after details of the breach appeared on the dark web

  • Feb 2024

    Southern Water released a statement confirming that some of its data had been stolen and was at risk following the cyberattack. The media began reporting the Southern Water data breach. 

We’ll provide more updates on the Southern Water data breach as they occur. 

Southern Water data breach FAQs

The Southern Water data breach was carried out by hacker group Black Basta. Southern Water has confirmed that the suspicious activity was detected on 23rd January 2024. 

The following personal data could be compromised:  

  • Customer names, dates of birth, NI numbers, bank account numbers, sort codes, and reference numbers  
  • Current and former employee HR and identity documents.  

Southern Water has written to all affected and potentially affected customers and employees. If you have not received this notification, it is unlikely that your data was compromised in the attack. Our simple eligibility checker provides instant clarity.  

Have you been notified that your data may have been involved in the Southern Water data breach? If yes, you could have a NO-WIN, NO- FEE Southern Water compensation claim. Our simple eligibility checker provides instant clarity. Answer a few straightforward questions, and you’ll know if you could qualify for a Southern Water data breach group action claim. 

We cannot say how much compensation you might get if you win a Southern Water data breach case. Each claim is based on its merits and your solicitor will work to get the compensation owed to you.  

In the UK, if a group of people have experienced loss, or otherwise been harmed by an organisation’s law breaking, they can come together to fight for justice. Levelling the playing field when standing up to big businesses, group actions prove that there is strength in numbers. At Join the Claim, we bring consumers and law firms together to ensure these group actions are as powerful as possible. 

We won’t charge you a single penny. And we ensure any law firms we connect you with operate on a no-win-no-fee basis. If you win, the law firm will either take its fees from your compensation payment or recover these from the defendants.   

About Join the Claim

At Join the Claim, we unite law firms and individuals to ensure powerful group action claims. We are not a law firm, but we help ensure people get straightforward access to compensation.  

Think of us as the ultimate matchmaker for justice. Shining a spotlight on the latest and biggest consumer wrongdoings and making eligibility checks a breeze, we connect you with the law firms ready to fight for you.  

We won’t charge you a single penny when you sign up to join a claim, but we might take a fee from the law firms we introduce you to. 

Latest Southern Water data breach news