Control de Acceso Cancerbero Grupo CibernosCancerbero is a mythical beast in Greek legends. Its portrayal often shows it as a multi-headed dog watching over the gates of Hades. According to some legends, Cancerbero possesses three heads, while in others it can have as many as nine separate heads. The word "cancerbero" is also used to refer to a watchful and unrelenting protector.
