Apr 10 - Remember last year's wave of tech support scams, where you received calls from a foreign sounding "technician" asking for access to your Windows computer as well as your credit card details? They have been replaced this year by the robocall, a less intrusive scam that simply places a call to your landline or mobile, often from an exotic calling code like Cuba (+53) or Tunisia (+216). When you pick up there is usually silence at the other end. Out of curiosity or fear of missing an important call, some of us call back the number, unwittingly connecting…