Hansa was an online darknet market which operated on a hidden service of the Tor network.

[4] Law enforcement quickly began monitoring all actions on the site.

[3] Law enforcement allowed the userbase to grow during the seizure resulting in 27,000 illegal transactions occurring which served as evidence for future prosecution of the users.

[4][7] Local cybercrime prosecutor Martijn Egberts claimed to have obtained around 10,000 addresses of Hansa buyers outside of the Netherlands.

[8] After shut down, the site displayed a seizure notice and directed users to their hidden service[9] to find more information about the operation.