It’s small enough to fit in a backpack but with just one click, it can disable home security cameras and smart alarms protecting your Ontario home. Wi-Fi jammers are one of the tools thieves in Ontario, and some parts of the U.S., have reportedly been using to bypass home security protections during break-ins or home invasions. We reached out to police units in Ontario, and a Toronto-based home security expert, to get advice and best recommendations to outsmart these Wi-Fi blockers.