http://ssd.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/zh-hans/module/communiquer-avec-autrui
Without taking extra steps to protect your privacy, every phone call, text message, email, instant message, video and audio chat, and social media message could be vulnerable to eavesdroppers. Often the most privacy-protective way to communicate with others is in person, without computers or phones being involved at all.