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Cyber Security

We have one of the longest-standing privacy and cyber security teams in Europe and have been advising clients since the inception of data protection laws more than 20 years ago.

One of our key assets as a team is our global reach. Linklaters' internal privacy network spans 14 jurisdictions across Asia, the U.S. and Europe, while our wider network of independent privacy specialists covers over 100 countries.

We have frequent contact with the European Commission, the UK Treasury, Home Office and other government departments, the U.S. Department of Financial Services, the U.S. Secret Service, The Federal Bureau of Investigations and the U.S. Department of the Treasury, as well as data protection regulators around the world. These relationships mean that should an incident occur, we have the relationships in place to support our clients as required.

Clients benefit from our deep experience of advising on:

  • Some of the most serious hacking and data breach crises in the last decade.
  • Effective cyber crisis preparedness - through training, incident response planning, and risk management strategies.
  • Governance and resilience arrangements - helping clients review and put appropriate governance structures in place.
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Cyber security handbook

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Crisis Response

The right legal adviser can be pivotal to effectively managing and containing issues like cyber incidents and thinking ahead before a crisis hits: this is as much about prevention as cure.

We have assisted clients with investigations surrounding the circumstances of a hack or serious cyber incident in which our swift intervention and analysis of the facts meant that there was no need to notify either the regulators of their customers. As a result, these instances remain out of the public domain. We worked closely with the client teams to reach a final resolution that didn’t damage their reputation and avoided any form of litigation.

We are also experienced in situations where both regulators and customers have had to be notified of a breach or incident. In these cases, we have provided full support and advice on who to tell about the breach and when. This ensured that information become public knowledge only when absolutely necessary, in a manner that ensured the story was carefully and consistently messaged. 

In the event of a potential breach, our team is able to:

  • act as the core custodian of the facts (typically under legal privilege)
  • ensure the right information is available to decision makers, including valuable cyber threat intelligence before an incident occurs
  • ensure an accurate and consistent narrative is provided throughout by PR and communications representatives
  • support and assist with any internal investigations
  • advise on securing and recovering data, including by unorthodox means
  • provide necessary legal advice as to the board and management’s reporting responsibilities with an eye to collateral impacts (for example in updating markets)
  • liaise with relevant regulators and law enforcement officials across multiple jurisdictions
  • advise on dealing with potential claims

Prepare and Recover

Our team can also assist with putting in place governance and training to help reduce the impact of cyber incidents by:


  • advising on effective incident response planning and testing, based on our experience in major incidents
  • delivering board level scenario training and wider organisational training
  • assisting with effective vendor risk management including designing procurement and audit processes
  • advising on wider privacy compliance issues (e.g. GDPR and the NIS Directive, issues arising from Brexit, request under the Freedom of Information Act and Environmental Information Regulations)

Our experience - Examples of our work include advising

a supplier to the NHS

on one of the largest losses of sensitive personal data in the UK, involving over a million records. As a result of our prompt advice and our client’s quick implementation of mitigations, no regulatory action was taken and the client was not obliged to notify any individual data subjects of the data loss
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a global IT provider

on the unauthorised extraction of personal account details (including log in details, passwords and burglar alarm codes) of tens of thousands individuals by a disgruntled employee with previously undiscovered Islamic extremist sympathies. The details extracted included those of close family members of three heads of state, less than two weeks prior to a major inter-governmental conference. Our support involved close liaison with law enforcement and specialist agencies in three European states and resolution of a significant related commercial dispute
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a number of global, U.S.-based financial institutions

on their notification strategies with data protection authorities in relation to the loss of back-up tapes being transported by subcontractors to long-term storage, some involving many millions of UK customer details
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a German bank

before the competent data protection supervisory authority regarding an alleged large-scale unauthorised data loss
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an information service company

on the loss of millions of sets of personal data due to a hacker attack and preparing the defence before the competent data protection supervisory authorities
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Useful guides

Cyber Security Handbook - The Essential Handbook for In-house Counsel

We have had a lot of questions from our clients about cyber over the years, including what is the role of in-house counsel in ensuring an organisation is prepared for cyber threats? We have consolidated our answers in this handbook. The handbook is designed to be a general resource, and you will also need to take into account any particular rules that your organisation is subject to, depending on the nature of the business and where it operates.

Find out more

Global crisis prevention and crisis management

High profile cyber security incidents are being reported in the press more and more often. Clients benefit from our experience, over many years, of advising on some of the most serious hacking and data breach crises in the last decade.

Find out more

Cyber security webinar presentation

A webinar presentation on ‘How to manage a cyber crisis’ and mitigating your risk exposure.

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Cyber security: The WannaCry Attack summary

The WannaCry attack provides a stark example of the damage that can be caused by a cyber-attack and provides a wakeup call for all companies of the need to protect against these attacks. We explain the background to the WannaCry attack, steps you should take when managing a cyber-crisis and the governance measures needed to avoid such a crisis developing in the first place.

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Our guide to the GDPR: Fully updated

Our GDPR survival guide to reflect the latest guidance from the European Data Protection Board and the status of national implementing law.

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Cyber Security: Global status and trends

Explore our report on the latest cyber security trends across the globe, and what to look out for in 2019.

Explore our client services related to Cyber Security

Our lawyers work across a number of risk prevention and response areas:

Learn more about our global Litigation, Arbitration & Investigations practice
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