Leaktest from Gibson Research (GRC) and various firewall
Steve Gibson (computer programmer) - Wikipedia Steven "Steve Tiberius" Gibson (born 26 March 1955) is an American software engineer, security researcher, and IT security proponent.In the early 1980s, Gibson worked on light pen technology for use with Apple and Atari systems. In 1985, he founded Gibson Research Corporation, best known for its SpinRite software. Is GRC ShieldsUP Safe? - Microsoft Community Feb 10, 2012 Using Shields Up To Test Firewall Vulnerabilities - YouTube Nov 10, 2012
Gibson Research Corporation is involved in computer security. Their web site offers both a diagnostic remote testing service against your machine, and cogent explanatory information. If the above Shields Up! test revealed that your port 139 is open to the world, you may wish to do something about it.
Topic: Shields Up! Port Scanner @ AskWoody
Gibson Research Shields UP! - Other Security Products
Feb 10, 2012 Using Shields Up To Test Firewall Vulnerabilities - YouTube Nov 10, 2012 ShieldsUP Tests Your Firewall for Vulnerabilities