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Engaging with cybersecurity has become essential for every type of business whatever their size or sector. Increased digitalisation and new technologies are allowing businesses to grow rapidly. However, cyber risks increase in tandem with these opportunities and every modern business should expect to experience a data breach.  

CMS has advised on over 500 cyber incidents to date and covers over 50 jurisdictions as part of our global cyber network.  Our approach is to tackle cyber issues holistically and globally.

Cyber from every angle

  • Breach incident response

    We’re available 24/7/365 to coordinate an immediate response to a breach. We advise on how to minimise the risk of regulatory sanction or litigation from the outset.

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  • Regulatory notifications and investigations

    Having excellent relationships with regulators worldwide, we assist with the submission of notifications and strategy for anticipated fines and actions.

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  • Cyber class actions, follow-on damages and civil claims

    When bringing and defending claims, we can seamlessly handle overlapping claims across multiple jurisdictions.

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  • Reputation management

    Placing your reputation at the heart of the process can help protect your business against public relations consequences.

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  • Cyber and data protection compliance

    Before an incident, we prepare businesses through audits, eLearning, training and breach response plans. Post-incident, we provide ongoing health checks and reviews.

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CMS helps to prevent, resolve and manage a cyber attack

  • 24/7/365 Emergency Response Hotline
  • Access to CMS experts via Breach Assistant knowledge hub
  • Data subject notification
  • ICO and oher regulatory notifications
  • Strategy for potential sanctions and litigation
  • Reputational management issues
  • Liaising with crimincal authorities

  • Supporting internal investigations
  • Handling regulatory investigations
  • Managing resulting litigation and class actions
  • Reputational management issues
  • Review and update policies and procedures
  • Directors' liability
  • Facilitating lessons learned reviews

Discussing the issues

  • Advising the Board on Cyber Risk

  • The data security perils of working from home (video)

  • Cyber and professions - Law-Now series

Further reading

CMS Emergency Response Support Line

CMS Breach Assistant

Data Law Navigator

Advising the Board

Awards & Recognitions
01
  • Quote
    "They know their law, they know the market, they have the ability to provide solutions not just give advice."
    Legal 500, 2021
  • Quote
    "The team has built up masses of experience and is excellent at using that experience to develop new talent; much needed in this growth space."
    Legal 500, 2021
  • Quote
    "Having been one of the early firms to create a global incident response service, that service is now one of the best we use. It operates seamlessly to provide global advice in short time frames and without incurring massive costs."
    Legal 500, 2021

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Events

  • 07 Sep 2026

    CMS Skills For Future Facing Teams: Connecting across generations

  • 08 Sep 2026

    2026 Insurance sector webinar programme

  • 08 Sep 2026 - 01 Dec 2026

    CMS Disputes 101 Annual Webinar Series 2026

  • 10 Sep 2026 - 04 Nov 2026

    IP Insights webinar series 2026 - Autumn

  • 11 Sep 2026

    The equIP Collective | Glasgow to Global: Expanding into International Markets

  • 16 Sep 2026 - 11 Oct 2026

    Anatomy of an Investigation

  • 16 Sep 2026

    Data Centres - Managing Construction Risk

  • 17 Sep 2026

    ERA Ready?

  • 24 Sep 2026

    Is your data protection programme ready for the Data (Use and Access) Act 2025?

  • 29 Sep 2026

    CMS Brand Forum 2026

  • 30 Sep 2026

    On the Pulse Webinar Series 2026 - Autumn

  • 05 Oct 2026

    CMS Skills For Future Facing Teams: LaughABLE - achieving absurdly great results in challenging times

  • 06 Oct 2026

    Powering CEE's Energy Future: Policy, Investment, Innovation

  • 07 Oct 2026 - 10 Oct 2026

    CMS at AIPPI 2026

  • 07 Oct 2026 - 10 Oct 2026

    CMS at PTMG Autumn 2026

Local market knowledge. Global outlook

We provide future-facing legal advice to help your organisation thrive. Combining local market knowledge and a global perspective, and with lawyers in locations worldwide, your organisation benefits from the expertise it needs, even across borders.

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