as well as the backend for ImageShack's BitTorrent service. Distribution and ports A portable version is available on PortableApps.com. Ports Transmission is a set of lightweight BitTorrent clients (in GUI, CLI and daemon form). All its incarnations feature a very simple, intuitive interface on top on an efficient, cross-platform back-end. There are several transmission clients for different operating systems including Unix-like, macOS and BeOS/ZETA. Each operating system front-end is built using native widget toolkits. For example, transmission-gtk uses the GTK interface, transmission-qt the Qt interface, and transmission-cli a command-line interface. Transmission-remote-cli is an ncurses interface for the transmission-daemon. Python-transmissionrpc is a Python module implementing the JSON-RPC protocol for Transmission. An unofficial port of Transmission using a command-line interface (CLI) on iOS was accomplished on 3 March 2008. In November 2010, iTransmission, another unofficial port, was released for jailbroken iPhones sporting a GUI that is capable of downloading directly to the device over WiFi or 3G. A Transmission remote was released for Android, with the name of Transdroid but does not currently support downloading directly to devices. On Windows, Transmission-Qt can be built with MinGW, the daemon and console tools can be built with Cygwin, also there are two third-party GUIs: transmission-remote-dotnet and Transmission Remote GUI, as well as unofficial full builds of Transmission's Qt Client., There is also an unofficial full build of Transmission daemon which can be run as a Windows service. This same unofficial full build of Transmission daemon running as a Windows service can be used for direct streaming of the downloading file(s). A port for all platforms enhanced with streaming of the downloading file(s) is located on GitHub. It is also ported to the Maemo OS of the Nokia N810 internet tablet and N900 smartphone as well as to the MeeGo/Harmattan OS of the Nokia N9 and N950 smartphones, on which it does download the torrents to the device. Website breach In March 2016, Palo Alto Networks reported that Transmission's official website was compromised and tainted .dmg files were uploaded to the site, using an Apple Developer signature to bypass the OS X gatekeeper feature. The tainted packages installed a ransomware application (a variant of Linux.Encoder.1, but recompiled for Mac, known as KeRanger) that encrypts the user's files and attempts to force users to pay 1 Bitcoin (worth roughly US$404 at the time of the attack) in order to get the decryption pack. The Transmission website