Internet intruders have many ingenious ways of escalating privileges and hiding their presence once they get inside your system. The best protection is to keep them out in the cold.

Are your systems secure against DNS attacks? We'll show you why they matter and help you determine whether you are vulnerable.

When it comes to security, public disclosure of vulnerabilities and working exploit code is now common. We look at why this can be both harmful and helpful to securing your systems.

When it comes to security, public disclosure of vulnerabilities and working exploit code is now common. We look at why this can be both harmful and helpful to securing your systems.

The U.S. network backup software provider TOLIS Group is preparing a new version of its BRU Server data security product and promises significant enhancements.

This article explains in four simple steps how you can use a home-based Windows PC to secure a notebook and circumvent systems such as the "Great Firewall of China". With OpenVPN, mobile users can surf without fear of the restrictions that might otherwise affect them on the local network to which they are connected, and can access all Internet content without danger of being bugged or censored.

Multimedia software MPlayer notifies of security holes in the Real demuxer code that can result in arbitrary code execution.