Cambian Group data breach

Vulnerable individuals are at risk following a hack at social care provider Cambian.

Keller Postman UK can help victims to claim compensation.

Have you been affected by the Cambian data breach?

In January 2023, Cambian Group, which is one of the largest children’s social care providers in the UK, discovered “unauthorised activity” on its computer systems.  

Cambian is owned by CareTech. It operates a network of hospitals, schools, and homes for children and adults with learning disabilities, autism, and mental health conditions. Cambian currently looks after 2,100 children across the UK, and its services have a specific focus on individuals who present with high-severity needs. By the Bridge Fostering – part of the Cambian Group – is also affected by this data security incident.  

The AvosLocker ransomware gang, which has been flagged as a threat by the FBI, is thought to be behind the attack.  

Keller Postman UK has launched an investigation to find out how this data privacy breach was allowed to happen, and how the security incident affects those who use Cambian’s services.  

If you are affected by the Cambian data breach, join our no-win, no-fee action and claim compensation for this data protection failure. Because of the nature of this breach, and the sensitivities involved, we can represent you anonymously, and speak on your behalf.  

*As of 25 April 2023 

Why claim data breach compensation?

Hold organisations to account for failing to protect your private information.

Receive financial compensation for your loss.

Force organisations to implement better data security.

Personal, medical and financial information was compromised in the breach

A significant amount of personal data – including sensitive special category health data – has been put up for sale online. This includes: 

Parent and student personal details

Including names, dates of birth, home addresses, contact numbers, and email addresses. 

Next of kin details

Including telephone numbers, and email addresses.    

Medical data

Such as Educational Health Care Plan reports, GP records, medical notes, diagnosis, and referrals to other medical professions.   

Financial and bank details

Including names, sort codes, and account numbers.  

The fact that this data could be sold and bought by cybercriminals is extremely worrying.  

Teachers and other workers within Cambian’s schools are also affected by this data breach. And, almost four months after the data security breach, By the Bridge Fostering – part of the Cambian Group – wrote to former foster parents with more information.  According to a Data Incident Notification sent to affected individuals, the stolen data includes:   

  • Fostering applications and assessments   
  • Bank details (those used by By the Bridge to pay foster parents)   
  • Documents relating to their role as a foster parent up until they left By The Bridge  

Worryingly, Cambian admits that further data could also be affected.   

Victims of the Cambian Group data breach could be at risk

Cambian has written to those affected to make them aware of this attack. However, despite becoming aware of the incident at the start of 2023, Cambian took two months to inform those affected by the breach. 

At Keller Postman UK, we have seen victims of similar data breaches become the target of cybercriminals, with instances of phishing, fraud, and identity theft. Some victims of this breach have already experienced fraudulent transactions. By failing to take sufficient steps to notify all those involved immediately, Cambian left them exposed as they were not given the opportunity to protect themselves. This adds to the victims’ worry now that they have found out about the breach. 

Our data protection experts strongly advise anyone involved in this breach to be vigilant and take necessary precautions.   


Talk to our expert data breach lawyers today on 0151 459 5850 

Cambian data breach timeline

  • 4 January 2023
    On or around this date, Cambian Group, discovered “unauthorised activity” on its computer systems.
  • March 2023
    Cambian began to inform those affected by the breach.
  • Keller Postman UK launched an investigation into this data breach to help victims claim compensation for the privacy violation.
  • April 2023
    Cambian wrote to former foster parents to confirm their involvement in the data breach.

Latest News

Your questions answered

FAQs about the Cambian Group data breach

In January 2023, Cambian Group discovered “unauthorised activity” on its computer systems. Cambian is “now working with third party IT experts who are continuing to investigate the incident and ascertain what data has been compromised.” 

Cambian immediately took its systems offline after discovering the hack. It also reported the attack to the Information Commissioner’s Office, the National Cyber-Security Centre, the National Crime Agency, local authorities, and its regulators. 

The stolen information relates to Cambian students, their parents and next of kin. Personal, medical and financial information was compromised and has since been found for sale on the dark web. In April 2023, Cambian wrote to former foster parents to confirm their involvement in the data breach. 

Teachers and other workers within Cambian’s schools are also affected.      

Cambian should have informed those affected by the incident. Anyone involved in this data protection failure should immediately take steps to protect themselves. 

It is unlikely that cybercriminals would have accessed Cambian’s systems if robust data security processes had been in place. As such, Cambian must be held accountable for any losses and distress experienced. 

A group action claim is where a group of people – sometimes even thousands of people – have been affected by the same issue. Group action cases are also known as class actions, multi-claimant, or multi-party actions.

We expect our confidential medical data to be taken care of. But the UK health sector accounts for nearly half of all data breaches, and as our health and social care system becomes increasingly digital, there are concerns that the robust protections required are simply not in place. 

Data privacy is often being treated as an afterthought, and while no one wants to sue those working in the sector, making a claim is sometimes the only way to force improvements in data security. It is also worth mentioning that such organisations should be insured against compensation claims. 

There are no costs to join a claim. However, if your claim is successful, you may have to pay a ‘success fee’. This fee is taken from the compensation awarded to you. At Keller Postman UK, our success fee is competitive, and we make sure you are fully informed about any potential costs before you officially join our action. If you lose, you won’t have to pay a penny.


More information about making a group action claim



Find out more about making a group action claim for compensation.



What does no-win, no-fee actually mean and are there really no costs if you appoint us?

Why use Keller Postman UK to make a claim?

We are one of the most experienced multi-claimant law firms in the UK.

Our GDPR, data breach and cybercrime specialists have a combined experience of over 50 years.

We represent clients in group actions with innovation, resources, and expertise.

We work with expert barristers to ensure you get the very best level of legal support available.

We have all the resources and global expertise necessary to take on complicated cases and win.

We have offices in Chancery Lane London, Birmingham and Liverpool, and the technology to provide a nationwide service, so we can help clients across England & Wales.

We use technology to deliver a better legal experience to our clients.

We work on a no-win, no-fee basis.

We make the process straightforward and hassle-free.

What can you claim for?

While each case is judged on its own merits, there are some things we would typically look for when it comes to when claiming compensation following a data breach, cybercrime or other GDPR violation:

Financial loss

With stolen data, cybercriminals can make purchases using your bank and credit cards, apply for credit in your name, set up fraudulent bank accounts and access your existing online accounts.


GDPR failures, cybercrime and data breaches can have a significant impact on you, both mentally and physically. They can cause or exacerbate anxiety, stress and other psychological conditions.

Loss of privacy

Your data has value, and organisations must be held to account if they fail to protect your right to data privacy or otherwise do not uphold your GDPR rights.

How to protect yourself following a data breach or cybercrime

  • Contact your bank or credit card provider immediately if your financial data has been exposed.
  • Check all bills and emails for goods or services you have not ordered.
  • Check your bank account for unfamiliar transactions.
  • Alert your bank or credit card provider immediately if there is any suspicious activity.
  • Monitor your credit score for any unexpected dips.
  • Call Credit, Experian and Equifax to ensure credit isn’t taken out in your name.
  • Never provide your PIN or full password to anyone (even someone claiming to be from your bank).
  • Never been pressured into moving money to another account for fraud reasons. A legitimate bank won’t ask you to do this.
  • Follow the security instructions provided by the organisation that breached your data.
  • Never automatically click on any suspicious links or downloads in emails or texts.
  • Don’t assume an email or phone call is authentic just because someone has your details.
  • Be careful who you trust – criminals often use scare tactics to try and trick you into revealing your security details.
  • Know that, even if you recognise a name or number, it might not be genuine.
  • Don’t be rushed or pressured into making a decision. A trustworthy organisation would never force you to make a financial transaction on the spot.
  • Never provide your full password, pin or security code to someone over the phone (or via message). If a bank believes a transaction has been fraudulent, they will not ask for this information to cancel the transaction.
  • Listen to your instincts and ask questions if something feels “off”.
  • Refuse requests for personal or financial information and stop discussions if you are at all unsure.
  • Contact your bank or financial service provider on a number you know and trust to check if a communication is genuine.
  • Be cautious of unsolicited communications that refer you to a web page asking for personal data.
  • Don’t accept friend requests from people you don’t know on social media.
  • Review your online privacy settings.
  • Report suspected fraud attempts to the police and Action Fraud.
  • Register with the Cifas protective registration service to slow down credit applications made in your name.
  • Change your passwords regularly and use a different password for every account (a password manager can help with this).
  • Protect your devices with up-to-date internet security software.