It's not just guns and drugs that are up for sale on deep web sites.Vendors also list guides on how to commit other illegal activities.
It's called the "cashing out" stage, and it's where scammers start to ask for money.
Up until now, scammers were instructed to turn down any requests for a Skype call, but if the target insists, then they should ask him to pay for a webcam.
Scammers are told to use a female partner for the video call part of the process, but there are guidelines on what they should look like: If a scammer is successful here, and managed to con the target out of money for a webcam, or other small amounts, then they may attempt the riskiest part of the process, known as the "pause." Scammers are instructed to stage an altercation over webcam, and then cease contact.
After a week, scammers are told to call the target and claim that their "husband/father/pimp/whoever" got "drunk/high/whatever" and attacked them.
This screenshot shows a user of a hacker forum being advised that a quick way to find sets of photos is to automatically download them from Facebook: Even before a scammer messages you, you can spot they're fake by checking their photos.
Performing a Google image search for an account's profile picture will show you where on the internet the image appears — sometimes you'll see it attached to Facebook, Instagram and Twitter accounts with various different names.
That's a sure sign that the account is fake, as the photo must have been circulating on the internet.
Step two in the dating scam guide deals with "developing a virtual relationship." Scammers are told to ask lots of questions about their targets, paying particular attention to their past relationships.
The guide isn't available for free, in fact, it was being sold for Bitcoins on a deep web marketplace.
Bitcoin is cryptographic currency favoured by criminals as it allows semi-anonymous online transactions.
Another way to spot whether an account is fake is the selection of photos that it uses.