The FBI eventually arrested Ulbricht by piecing together clues that they gathered from various places outside the Tor network. It ran on a computer controlled by Ulbricht. One of the first things that alerted law enforcement to the operation of Silk Road was a spike in the level of drugs being intercepted in the mail. We are reader supported and may earn a commission when you buy through links on our site. Apart from Paypal, other payment methods include But the lack of the same is what forced us to slide it down to the very end of this list. One more thing to note is that the concepts of privacy and anonymity are often linked with criminal use.