![Portrait image of Paul-Olivier Dehaye](https://appliedmldays.org/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBb29JIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--a8f5332f801ef81764fdebd04ab16ac3f839131c/Paul-Olivier_Dehaye.jpg)
Paul-Olivier Dehaye is the CEO of Hestia.ai, a company focused on building sustainable data ecosystems. He was previously Director of the nonprofit PersonalData.IO and member of the Board of MyData Global. A mathematician by training, he was, working with many journalists, at the origin of the uncovering of the Cambridge Analytica scandal.