Don’t be mislead and don’t be fooled by having a false sense of security. Police and others can follow the electronic trail you are always leaving behind you and they do follow it even if they are not legally authorized to do so. These IMSI catchers are not and never have been authorized for use in Canada but police and other agencies are using them nevertheless.
Canadians are finally getting some answers about how the technology has been used here
Source: Tracking our phones: How StingRay devices are being used by police – The Globe and Mail