By the way, dear yoga. You can verify if your firewall is really, really good and stealth to crackers (evil hackers).
You can check 02 sites below:
•
Gibson Reserch Corporation
Their most famous service is
ShieldsUP!.
And you can learn about his
history:
President and Founder, (Mel) Gibson Research Corporation
Located in Laguna (Loire) Hills, CA 92653
•
Matousec.com
They are Czech group that perform a test-set of
leak-tests to all known software including PC firewalls named
Proactive Security Challenge 64.
You can check the results of the tests
here.
Some people question tests and results performed by
Matousec.com, but the page about this on Wikipedia was deleted or removed for (unknown) reason...