I was surfing the web a looking for scripts in PHP when I came across this:
FBI crack Tor and catch 1,500 visitors to biggest child pornography website on the dark web
They mention, and I quote "deployed a network investigative technique (NIT) – a hacking tool – and used a single warrant to uncover 1,300 IP addresses, tracing these addresses back to actual individuals." in a server that they seized and hosted for two more weeks in their own installations.
Can we say that ToR is no longer safe to use?
In here you can read how the FBI acted to break those machines https://motherboard.vice.com/read/the-fbis-unprecedented-hacking-campaign-targeted-over-a-thousand-computers