[aarond0623]

It is, and they give them special phones for that reason. Obama had a special Blackberry limited to 10 people.

https://www.theguardian.com/technology/2013/dec/05/barack-ob...

[RandomBacon]

Your comment's interpretation is ambiguous. I interpreted as there are/were 10 people that had these special Blackberry phones, when the article says Obama's Blackberry was just limited to contacting 10 people.

[euroderf]

I would guess, three for family, three for end-of-civilisation emergencies, two for politics, that leaves two for miscellaneous.