Icon of program: LeakOut

LeakOut for Windows

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Editors’ Review

Download.com staff
LeakOut is a straightforward utility designed to reveal how outbound firewall controls can be bypassed, challenging the perceived security of personal firewall systems.

Top Recommended Alternative

  • Pros

    • Demonstrates firewall circumvention techniques.
    • Uses simple, accessible methods.
    • Challenges reliance on firewall security.
    • Employs the default browser for testing.

  • Cons

    • Limited to demonstrating outbound control bypass.
    • Relies on specific URL access.
    • May not cover all firewall types.
Icon of program: LeakOut

LeakOut for Windows

Download now

Used LeakOut for Windows?

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Full Specifications

GENERAL
Release
Latest update
Version
1.04
OPERATING SYSTEMS
Platform
Windows
Operating System
  • Windows 2000
  • Windows XP
  • Windows 10
  • Windows 98
  • Windows ME
Additional Requirements
None
POPULARITY
Total Downloads
182
Downloads Last Week
0
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Last Updated

Developer’s Description

By Marco Pontello
Control or filter personal firewalls like ZoneAlarm.
LeakOut is a simple tool to demonstrate how it is possibile, in certain circumstances, to circumvent the outbound control or filtering systems of personal firewalls such as ZoneAlarm, Outpost, Kerio, Sygate, and Look'n'Stop.Other tools that do a similar test, using slightly different techniques, are Tooleaky, LeakTest, and FireHole. LeakOut doesn't use any especially exotic or refined techniques. That's by design to demonstrate that the "sense of security" derived from an advertised active outbound filtering and/or application control/fingerprinting system is often just an illusion. LeakOut just uses the default browser to access a specific URL (a page on this same site) to pass a bit of data appended to the URL.
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