Portmaster, an Open Source Firewall for the Desktop

Security should never be taken for granted, no matter what operating system you use. You might have a Linux desktop and assume it to be invincible. In that assumption, you would be wrong.

If a computer is attached to a network, it is vulnerable.

Read that aloud, again and again.

Most operating systems have built-in firewalls and other systems for protection, and that’s great. However, it doesn’t mean the OS is bulletproof. There’s always some way that your security and/or privacy can be breached, and when it does, bad things can…