From Wikipedia:
Typosquatting, also called URL hijacking, is a form of cybersquatting, and possibly brandjacking which relies on mistakes such as typographical errors made by Internet users when inputting a website address into a web browser. Should a user accidentally enter an incorrect website address, they may be led to an alternative website owned by a cybersquatter.
We all do make the odd error when adding a link in the conversation, are we know on the same page ?