deep web
Cybercrime and hacking services have been offered for sale over the Dark Web.
Online forums within the dark web are used by groups who would rather keep their conversations secret.
The other side of the open internet is the shadowy dark net of armed social movements and transnational criminal networks.

SMART Vocabulary: related words and phrases

Internet terminology
.plc.uk
2FA
2SV
above/below the foldidiom
address bar
affiliate link
atm
hybrid
Instagrammable
Instagrammer
instant-message
internet
internet-enabled
service provider
the World Wide Web
timeline
trackback
trend
troll factory
trolling