# Linda Yaccarino Advertising executive who became CEO of X (formerly [[Twitter]]) in 2023, recruited from NBCUniversal to rebuild the platform's advertiser relationships under owner [[Elon Musk]]. Her tenure was defined by the tension between that mandate and Musk's own conduct — most acutely the November 2023 advertiser exodus triggered when Musk endorsed an antisemitic [[Great Replacement Theory]] post. See [[Elon Musk - 2023-11-15 - great replacement endorsement]].