Why does this appear on the lock screen of my iPhone 5! Please give me some advice, no one else has this situation [picture]

What a virus, this is the operator’s “call signature” service (also called “color printing service”).

The color printing service is a value-added service that transmits additional information during the user's call. During the call between the calling and called users, the system automatically pushes the user's preset color printed information (such as mood, jokes, blessings, advertisements, Weibo, etc.) to the other party's mobile phone, so that the other party can Then see the color printed information to achieve the purpose of showing personality, sharing mood, and conveying business information.