Twitter has undergone several changes since Elon Musk took over in October last year. Some of these include a paid subscription and 2-factor authentication for paying customers. The company has now brought another change that may have a big impact on users. The social media company is making it mandatory for users to sign in to an account if they want to access tweets on the platform.Twitter has undergone several changes since Elon Musk took over in October last year. Some of these include a paid subscription and 2-factor authentication for paying customers. The company has now brought another change that may have a big impact on users. The social media company is making it mandatory for users to sign in to an account if they want to access tweets on the platform.