In September 2021, the French Cour de Cassation reversed the annulment that the Paris Cour d'appel earlier had granted in regard to an arbitral award in Alexander Brothers v Alstom on grounds of corruption. This brought French courts in line with their English counterparts, at least in that one case, the latter having accepted the Alexander Brothers award as enforceable. Noteworthy beyond the welcome consistency that the recent French judgment imparts in one case, that and other recent judgments cast light on several issues in international arbitration, including the arbitrability of allegations of fraud or corruption, the relevance of evidence of corruption ‘downstream’ from a contract, and the legal effects (if any) on third parties of internal compliance regimes that enterprises adopt in response to national regulatory and enforcement actions in respect of corruption.