Most web surfers face this error while browsing when they visit websites that use a Transmission Control Protocol or TCP. SPDY needs Secure Sockets Layer (SSL) or Transport Layer Security (TLS) to work. This error is known as the SPDY error, and SPDY is a security protocol by Google to protect its users. The privacy-related message is displayed when the connection to the website you are trying to visit is not secure. Wikipedia Your Connection Is Not Private- What happened recently?.Why is it showing that Wikipedia Your Connection Is Not Private?.