Only some items were stolen or damaged, not everything.
During the security turmoil following the 25 January Revolution, the museum was broken into on 28 January 2011, by unidentified individuals, and 54 artifacts were stolen. Zahi Hawass, the then director of the Supreme Council of Antiquities, stated "My heart is broken and my blood is boiling".[30] Hawass later told The New York Times that thieves looking for gold broke 70 objects, including two sculptures of the pharaoh Tutankhamun and took two skulls from a research lab, before being stopped as they left the museum.[31] In response, the military cordoned off the museum to secure it against looting and theft.[32]
During the security turmoil following the 25 January Revolution, the museum was broken into on 28 January 2011, by unidentified individuals, and 54 artifacts were stolen. Zahi Hawass, the then director of the Supreme Council of Antiquities, stated "My heart is broken and my blood is boiling".[30] Hawass later told The New York Times that thieves looking for gold broke 70 objects, including two sculptures of the pharaoh Tutankhamun and took two skulls from a research lab, before being stopped as they left the museum.[31] In response, the military cordoned off the museum to secure it against looting and theft.[32]
https://en.wikipedia.org/wiki/Egyptian_Museum
And a page about the foreign exhibitions and tours
https://en.wikipedia.org/wiki/Exhibitions_of_artifacts_from_...