09/10/2023

Encrypted Client Hello (ECH) is a new technology designed to make the internet more private and secure. It’s part of Mozilla’s efforts to improve online privacy. When we use websites, many of our activities involve sharing sensitive information like passwords and credit card details. This information is usually protected by security protocols like Transport Layer Security (TLS). However, ECH is a new addition to TLS that focuses on keeping the websites we visit private. Normally, when your web browser connects to a website, it sends the website’s name without encryption in the very first message. This makes it possible for network operators or anyone watching the network to see which websites you’re visiting. ECH changes this by encrypting that initial message, making it much harder for others to spy on your online activities.

Encrypted Client Hello (ECH) is a new technology designed to make the internet more private and secure. It's part of Mozilla's efforts to improve online privacy. When we use websites, many of our activities involve sharing sensitive information like passwords and credit card details. This information is usually protected by security protocols like Transport Layer Security (TLS). However, ECH is a new addition to TLS that focuses on keeping the websites we visit private. Normally, when your web browser connects to a website, it sends the website's name without encryption in the very first message. This makes it possible for network operators or anyone watching the network to see which websites you're visiting. ECH changes this by encrypting that initial message, making it much harder for others to spy on your online activities.

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