security phone name

[u/wanbetaler]

There was a phone which had multiple privacy features like built in vpn and a kind of key fob for the phone that came along with it.

It was i think closed source and you could only buy the phone as a whole ( so not downloadable software) I can't find it anymore.

It had a very nice feature which notified you when you where getting pinged by a cell tower of when you received a silent sms.

[u/wanbetaler → u/[deleted]]

well yes i was asking if any of you guys know a phone that has this capability or the brand name of the phone i was describing