Supreme Court backs former employee in trade secrets case

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Supreme Court backs former employee in trade secrets case

The Court of Appeal was right to find that a former employee of mosquito net maker Vestergaard was not liable for breach of confidential information, the UK Supreme Court has ruled

In a unanimous decision, the five Supreme Court judges found that Trine Sig was not liable as she did not learn of any relevant trade secrets while employed by Vestergaard, and was not aware that such secrets were being used by an employee of her company.

Writing the Court’s judgment, Lord Neuberger said that the law must maintain a balance between protecting trade secrets and not unreasonably inhibiting competition in the marketplace. He said that IP protection is vital to economic prosperity but added: “On the other hand, the law should not discourage former employees from benefitting society and advancing themselves by imposing unfair potential difficulties on their honest attempts to compete with their former employers.”

The dispute between these two parties arose from a complex trade secrets case, in which the Court of Appeal had upheld a ruling that Vestergaard’s trade secrets were used by competitor Bestnet Europe.

Vestergaard was represented by barristers Mark Platt-Mills QC and Thomas Moody-Stuart and law firm Field Fisher Waterhouse while the respondents were represented by Alastair Wilson QC and George Hamer and law firm McGuire Woods London.

more from across site and SHARED ros bottom lb

More from across our site

To mark the EUIPO having processed five million EUTM and REUD applications, Managing IP speaks to the most prolific representatives to uncover how they stay at the top of their game
The merger marks Rouse’s second M&A deal within a month, and will provide access to Arnold & Siedsma’s UPC offering
Simon Tønners explains why IP provides the chance to work with some of the most passionate, risk-taking, and emotionally invested clients
The co-leaders of the firm’s new SEP practice group say the team will combine litigation and prosecution expertise to guide clients through cross-border challenges
Boasting four former Spruson & Ferguson leaders and with offices in Hong Kong and Singapore, the IP firm aims to provide fast, practical advice to clients
Partners at three law firms explain why trade secrets cases are rising, and how litigation is giving clients a market advantage
Delegates at a conference unpicking the UK’s relationship with the UPC are hopeful of strengthened UK involvement – so should we all be
News of a litigation funder suing its co-founder and a law firm over trade secrets infringement, and a strategic hire by Womble Bond Dickinson were also among the top talking points
Managing IP’s parent company, LBG, will acquire The Lawyer, a leading news, intelligence, and data-driven insight provider for the legal industry, from Centaur Media
In major recent developments, a team of partners broke away from Taylor Wessing to form their own firm, while Kilburn & Strode made a strategic UPC hire
Gift this article