In Philipp v Barclays Bank UK PLC1, the UK Supreme Court has given unanimous judgment in favour of Barclays Bank, and provided clear guidance on the so-called ‘Quincecare duty’ owed by banks to their customers. White & Case acted for UK Finance, the collective voice for the UK’s banking and finance industry, as intervener in the proceedings. The background to the case is summarised in our previous Client Alert on the Court of Appeal’s decision2, available here.