Kim Dotcom launched the successor to his shuttered Megaupload service this past Saturday and early adoption has been impressive. While speaking during a launch event for the new service, called simply “Mega,” Dotcom said that more than 1 million users joined the site in just one day, The Next Web reported. “We cannot be stopped,” Dotcom exclaimed, speaking directly to media rights holders that have targeted the alleged piracy kingpin. Mega is a file-sharing service similar to the original Megaupload site but it uses a complex encryption mechanism that prevents even Mega from knowing what files are hosted on its servers. Downloaded files can only be decrypted with a unique decryption key made available to the original file holder when a file is uploaded to the Mega site.