The Internet of Things is a dream which is becoming true. The technology is now sufficiently advanced to make the first application a reality. There can be no doubt that this future endless pool of data floating on the air will draw attention of the so-called hackers. It is very alar ming to realize we could give them the key to act in the physical world. There is too much at stake to just stand by. The sc ientific community has to work with the industry to make sure the security will not be left in favor of profit. In this report, I present the work of my final proj ect of the engineer school. It was a small contribution to the project to make the IoT secure. As an attacker, I tried to misuse the LoRa network. In order to do so, I use the new possibilities offered by a new kind of reconfigurab le hardware called USRP. I fear, this kind of cheap equipment could make the attacks easier. But, as I am not a malicious person, my ultimate go al was, when I found a vulnerability, to proposed solutions to fix it.