The European Commission faces renewed pressure to reveal its interactions with private technology companies in developing a contentious proposal to scan private messages for child sexual abuse material. Concerns have been raised about potential influence by the tech industry on the Commission’s drafting of the legislation, which has sparked opposition from EU institutions and civil society groups. The EU’s ombudsman is investigating a complaint alleging a lack of transparency and has found preliminary evidence of maladministration by the Commission. The ombudsman urges the Commission to provide greater access to withheld documents, including correspondence with potential suppliers of CSAM-scanning technology.