A 2016 anti-terrorist federal law 374-FZ known as Yarovaya Law requires all telecommunication providers to store phone call, text and email metadata, as well as the actual voice recordings for up to 6 months. Messaging services like Whatsapp are required to provide cryptographic backdoors to law-enforcement.[58] The law has been widely criticized both in Russia and abroad as an infringement of human rights and a waste of resources.[59][60][61][62]