At least at the start of the Obama Administration, he was known to be hooked on his Blackberry [0], and I know RIM did a lot of work to provide secured devices

At least at the start of the Obama Administration, he was known to be hooked on his Blackberry [0], and I know RIM did a lot of work to provide secured devices to government officials. I don't know what government officials are using since RIM went under though. [0] https://www.nbcnews.com/id/wbna28780205 https://www.nbcnews.com/id/wbna28780205