LinearC for Windows is a cross-platform, comprehensive networked application which offers anonymity, privacy, and security functions. LinearC is a privacy-enhancing filtering proxy with intelligent cookie managing features and filtering capability. The LinearC service includes real-time counter measures for new privacy and security threats, including profiling, connection eavesdropping, intrusion protection, and intelligent targeting. For example, images loaded through anonymous FTP are rewritten with a password. It also includes CueCat serial number filtering as well as simple JavaScript filtering capability.