It's kind of ridiculous to think of paging devices as secure or private in any way. The main reason one might have to use one over a cell phone is they are passive devices, unless you use a two-way feature. But everything goes over the wire unencrypted and broadcast for between 10 minutes and four hours. An example is the famous 9/11 pager logs: http://911.wikileaks.org/
>But everything goes over the wire unencrypted and broadcast for between 10 minutes and four hours.
'Everything' in transit to or from a pager is different than 'everything' in transit to or from, or at rest within, in addition to the current location of a smartphone. Not to mention the ability to change the code executing on them in order to use any sensors that you please.
It's kind of ridiculous to think of paging devices as secure or private in any way. The main reason one might have to use one over a cell phone is they are passive devices, unless you use a two-way feature. But everything goes over the wire unencrypted and broadcast for between 10 minutes and four hours. An example is the famous 9/11 pager logs: http://911.wikileaks.org/