This USB in my hand has the most encrypted OS in the world called the tails OS. Generally it is legal to use but people use it for illegal practices. It is specially designed to access the hidden web safely. This OS is known to be the safest method to access the hidden web as after booting it in your PC, you become completely anonymous to the internet. As soon as you remove the pen drive, all the data will be totally cleared leaving no evidence behind and no one can trace you. It is completely d