White & Case has been fined a record £250,000 by the Solicitors Disciplinary Tribunal (SDT) for failings around confidentiality and conflicts of interest, with one London partner fined an additional £50,000.

The fine, which is the largest ever made by the SDT against a single firm, relates to a 2014 High Court case that saw the firm blocked from acting for Ukrainian client Victor Pinchuk, after it failed to identify a conflict of interest.