Hackers breach four North American airports, broadcast anti-Israel messages The Times of IsraelApparent hackers take over PA systems at 4 North American airports CNNHacked Airport P.A. Systems Broadcast Anti-Trump and Pro-Hamas Messages The New York TimesPro-Hamas screed blasted through airport speakers in US, Canada after hack Fox NewsHarrisburg International Airport PA system hacked by ‘unauthorized user’ fox43.com