Phones were confiscated and security was present.

Source: http://www.crazydaysandnights.net

At a Christmas week dinner involving the alliterate royal, all guests and hired help were forced to sign a NDA.

In addition, phones were confiscated and security was present.

Finally, the hired help were body searched when arriving and leaving, not looking for weapons, but for notebooks, phones and other communication devices.

Meghan Markle

A Canadian restaurant says it turned down a Christmas booking from Prince Harry and Meghan Markle because their security is too much hassle

Prince Harry, Meghan Markle, and their son Archie are on a vacation in Canada over Christmas, rather than spending the time with the other royals.
The owner of the Deep Cove Chalet restaurant on Vancouver Island told local media that royal staff had tried to make a booking.
But Bev Koffel said they turned it down because the security would have been too much to handle.
She wished the royals a pleasant stay all the same, and said they had been seen jogging in a nearby town.

A Canadian seafood restaurant said it turned down a reservation from Prince Harry and Meghan Markle during their Christmas break to Vancouver Island.

Deep Cove Chalet, an upscale eatery in North Saanich, said that it decided not to take the request because their security needs make them too difficult to host. – Source