Mathematica v11.3 has just been released, A new feature, Chat, could be found In
File>New>Chat. It is convenient when communicating code with other users, but it's quite unsafe as one can let the other users in chat evaluate certain code and return the result using chat and self-evaluating behavior of
Though turning off Dynamic Updating completely would solve this problem, but it could be quite inconvenient. Are there anyway to keep my computer safe as well as allowing dynamic content to evaluate?