ENCRYPTIONEuropean Court of Human Rights Confirms: Weakening Encryption Violates Fundamental Rights

By Christoph Schmon

In a milestone judgment—Podchasov v. Russia—the European Court of Human Rights (ECtHR) has ruled that weakening of encryption can lead to general and indiscriminate surveillance of the communications of all users and violates the human right to privacy.  

In 2017, the landscape of digital communication in Russia faced a pivotal moment when the government required Telegram Messenger LLP and other “internet communication” providers to store all communication data—and content—for specified durations. These providers were also required to supply law enforcement authorities with users’ data, the content of their communications, as well as any information necessary to decrypt user messages. The FSB (the Russian Federal Security Service) subsequently ordered Telegram to assist in decrypting the communications of specific users suspected of engaging in terrorism-related activities.

Telegram opposed this order on the grounds that it would create a backdoor that would undermine encryption for all of its users. As a result, Russian courts fined Telegram and ordered the blocking of its app within the country. The controversy extended beyond Telegram, drawing in numerous users who contested the disclosure orders in Russian courts. A Russian citizen, Mr Podchasov, escalated the issue to the European Court of Human Rights (ECtHR), arguing that forced decryption of user communication would infringe on the right to private life under Article 8 of the European Convention of Human Rights (ECHR), which reads as follows:  

Everyone has the right to respect for his private and family life, his home and his correspondence (Article 8 ECHR, right to respect for private and family life, home and correspondence) 

EFF has always stood against government intrusion into the private lives of users and advocated for strong privacy guarantees, including the right to confidential communication. Encryption not only safeguards users’ privacy but also protects their right to freedom of expression protected under international human rights law. 

In a great victory for privacy advocates, the ECtHR agreed. The Court found that the requirement of continuous, blanket storage of private user data interferes with the right to privacy under the Convention, emphasizing that the possibility for national authorities to access these data is a crucial factor for determining a human rights violation [at 53].