Evidence

Multiple independent Israeli and international outlets have reported on advance warnings before October 7, 2023. Haaretz first reported that UAE President Mohammed bin Zayed (MBZ) personally called Netanyahu about 10 days before the attack, warning that Hamas leader Yahya Sinwar was planning a 'major operation'; this was later corroborated by The New York Times, per two sources including someone who spoke directly with MBZ. Separately, The Atlantic reported that Egypt's then-intelligence chief Abbas Kamel visited Israel 11 days before October 7 to warn officials of a coming major Hamas attack, a claim that built on earlier reporting by Yedioth Ahronoth (Oct. 9, 2023) that Kamel warned Netanyahu's office of 'something unusual, a terrifying operation.' The Wall Street Journal (cited by Times of Israel, i24News, Israel Hayom) more recently reported Kamel phoned Netanyahu's office directly with a third warning just days before the attack, with Egyptian warnings continuing until as late as 48 hours before. U.S. Rep. Michael McCaul, chairman of the House Foreign Affairs Committee, has also said Egypt warned Israel roughly three days before the attack. Netanyahu has repeatedly and explicitly denied receiving any such warnings from Egypt or the UAE, calling reports false and threatening a libel suit; his office and the Egyptian/Emirati foreign ministries reportedly did not respond to some requests for comment. I did not find a published fact-check verdict specifically on this claim from Reuters Fact Check, AFP Fact Check, Bellingcat, or EUvsDisinfo — this appears to be a matter of ongoing investigative journalism (Haaretz, NYT, WSJ, The Atlantic, Yedioth Ahronoth) rather than a discrete fact-checked claim.