IBM secured a legal victory in the UK on March 10, 2025, after the High Court ruled in its favour against LzLabs. The lawsuit, which IBM filed against the Swiss-based company and its owner, John Moores, centred on accusations of stealing trade secrets. IBM claimed LzLabs' UK subsidiary, Winsopia, misused its mainframe computer licence to reverse-engineer IBM's proprietary software.

The court sided with IBM, agreeing that Winsopia had violated the terms of its licence agreement. Judge Finola O'Farrell concluded that LzLabs and Moores had unlawfully facilitated these breaches. Although LzLabs defended its actions, arguing that its software was developed independently over many years, the court ruled that the company had acted inappropriately.

This ruling is seen as a major win for IBM, reinforcing the value of its technological investments. The case, which will proceed to a hearing to determine potential damages, reflects the company's commitment to protecting its intellectual property. LzLabs and Moores did not immediately comment on the decision.