Parasol (Optionis) data breach

Cybercriminals could have accessed the personal information of contractors and employees.
Keller Lenkner UK can help victims to claim compensation.

Have you been affected by the Parasol data breach?

In January 2022, Parasol Group shut down some of its systems after it discovered “malicious activity” on its network.

Parasol is an umbrella company used by contractors across the UK to manage their payments. By taking down its systems in a multi-day outage, many contractor salary payments were delayed.

Parasol confirmed that a cyberattack was to blame for the incident. This is widely speculated to be a ransomware attack. Parasol later admitted that personal data was accessed by cybercriminals. Some of this data has been shared online.

The Keller Lenkner UK investigators believe that the following contractor data was accessed in the breach:

Parasol employee data including training and sick records are also thought to be affected.

Keller Lenkner UK has launched an action to help those involved in the Parasol (Optionis) data security failure.  We strongly urge anyone affected to register with us.



The compromised information belongs to Parasol’s parent company, Optionis.

Other companies owned by Optionis include:

Our investigations show that the following businesses were affected by the same cyberattack: Optionis, Optionis Group, Parasol, Arkarius Midco, Arkarius Bidco, Optionis Midco, SJD Accountancy, Nixon Williams, First Freelance, First Umbrella, Optionis Bidco, Clearsky Accountancy and Payroll, Optionis Management, Clearsky Contractor Accounting, Silverline Performance, Wheatley Pearce, Arc Licensed Trade Consultancy, Brian Alfred, and Arnsco.

Together, these businesses provide services to tens of thousands of contractors. Customers of these businesses may also have had their data stolen.

Why claim Parasol data breach compensation?

Hold the guilty party to account for failing to protect your private information.

Receive financial compensation for your losses.

Force organisations to implement better data security.

Those affected by the Parasol cyber-attack could be at risk

If your data was compromised in this incident, but it has not yet been shared on the dark web, there is no guarantee that this won’t happen.

The hackers might also choose to sell the records to other criminals.

Similar data breaches have resulted in fraud, blackmail, identity theft and more, so many contractors are experiencing high levels of distress.

Those affected by the incident could have a compensation claim.


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

Parasol Data Breach Timeline

  • 10 January 2022
    Parasol contractors began experiencing technical difficulties with the company’s online systems.
  • 12 January 2022
    Parasol confirmed that it was experiencing a systems outage.
  • 16 January 2022
    A statement from Parasol confirmed that its issues were due to malicious activity on its networks.
  • 3 February 2022
    Computer Weekly reported that many contractors were still experiencing payment issues.
  • 7 February 2022
    Parasol admitted that “some data” had been copied and leaked online since the cyber-attack.

Latest News



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 Lenkner UK to make a claim?

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

We represent clients in group actions and individual cases 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.


Your questions answered

See our answers to the FAQs we get asked about the Parasol data security incident.

FAQs about the Parasol data incident

Parasol Group shut down some of its systems after it discovered “malicious activity” on its network. The incident, which is believed to be a ransomware attack, resulted in the exfiltration of some contractor and employee information. This data was then posted online.

The stolen information includes personal and financial contractor data. Some employee information is also thought to be affected.

If you are a Parasol customer or employee, you could be affected by this breach. Parasol has a legal obligation to tell you if your information is compromised. However, Parasol has not yet identified whose data was accessed.

If Parasol informs you that your data is involved in this breach, you can join our no-win, no-fee compensation claim. There are no costs to register and no obligation to proceed.

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.

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 Lenkner 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.

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 loses

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.