As a person, when you look at a web page you see the information that the author wants you to see. There is also a number of other things in the code of the web page that you cant see. So how can you know if it's a fake site or the real thing?
The wumber IE Add-on is always on the lookout and does not see any of the things that you see, instead the wumber IE add-on goes to work examining the infrastructure behind the web page.
It looks at the servers that are used to display the web site, it examines the DNS and other elements to make a map of the environment. This is called an INFRAMAP and is only used by wumber.
Once satisfied that the website is a new web site (and you haven't requested a wumber for in the past) it will generate a new wumber creating a unique and totally random password and then display all this information to you. However, if the web site has already been mapped it will provide the same wumber and password as it did when it first saw the mapping.
A user would see a website page like this:
When you launch the wumber IE Add-on it appears to wumber to be more like this:
IE Add-on prevents PHISHING threats
Once you launch the wumber IE Add-on it communicates the INFRAMAP back to wumber to determine if the web site has already been mapped or if it's a new web site and issue an existing or new wumber as necessary.
For example, when your genuine Internet banking web site was first visited the wumber IE Add-on mapped the web site and provided a unique wumber and password for the web site, lets say the wumber is ABC and the password was XYZ.
You then receive an email that appears to be from your bank, you click a link to visit a fake web site that looks exactly like your Internet banking web site and you don't event think twice about it!
Launching the wumber IE Add-on instantly maps the infrastructure behind the fake web site and determine that you have never been to the site before so issues a new wumber 123 with password MNO. You enter these details and the PHISHING exercise is now complete for the scammer. You would probably be automatically redirected to the real web site where you would login and it would all appear normal.
In the final analysis, you have provided a totally useless wumber and password to the scammers and your bank account is perfectly safe. You may not have even noticed that this happened. So if you can't detect the fake or counterfeit web site the only way to prevent this is with wumber.
The wumber IE Add-On user guide in the guides and downloads section provides comprehensive user instructions and details these scenarios and what phishing is.