Ben Sigler

Partner

Ben is a partner in our commercial litigation team and heads our contentious data protection practice. He has extensive experience in all aspects of dispute resolution including arbitration, litigation, and regulatory investigations, and has a particular focus on the financial and technology sectors. Ben's data protection practice is wide ranging, encompassing, amongst other things, advising clients in responding to major data security incidents and regulatory investigations, pursuing and defending civil proceedings in the data protection context, and advisory work on cyber-security related issues. This aspect of Ben's practice is complemented by his wealth of experience in advising both on reputation management and information law issues more generally and disputes in the technology sector, including in emergent technologies such as cryptoassets. Ben is recognised as a recommended lawyer in the Legal 500 for data protection.

  • Advised in relation to two substantial representative actions against major technology companies, arising from systemic breaches of data protection legislation, including in relation to children's data. In each case these claims sought damages running to billions of pounds.
  • Advised a financial institution in relation to a data breach which resulted in hackers gaining unauthorised access to extremely sensitive personal data, including details of very significant transactions involving clients of the company, which resulted in a third party being exposed to a significant financial loss. This included advising on all aspects of incident response including making relevant notifications to affected data subjects, the ICO, insurers, and the police, and potential disputes with third parties.
  • Advised in relation to a representative action against a software provider, arising from systemic breaches of data protection legislation, including in relation to sensitive personal data. This claim sought damages running to hundreds of millions of pounds.
  • Advised a listed financial services provider in relation to a data breach which had resulted in hackers gaining unauthorised access to the personal data of customers of over 5,000 merchants who used a payment platform operated by the client. This included advising on all aspects of incident response and potential disputes with third parties.
  • Advised a leading fitness company in relation to an investigation by the ICO into its direct marketing practices.
  • Advised a private equity fund in relation to a data breach suffered by an investee company which resulted in hackers gaining unauthorised access to personal data, including addresses and bank details, of various parties, including investors in the company. This included advising on all aspects of incident response including making relevant notifications to affected data subjects and the ICO.