Twitter has begun enforcing stricter policies on violent and abusive content like hateful images or symbols, including those attached to user profiles. From a report: The new guidelines, which were first announced one month ago, were put into place Monday. Monitors at the company will weigh hateful imagery in the same way they do graphic violence and adult content. If a user wants to post symbols or images that might be considered hateful, the post must be marked "sensitive media." Other users would then see a warning that would allow them to decide whether to view the post. Twitter is also prohibiting users from abusing or threatening others through their profiles or usernames. While the new guidelines became official on Monday, the social media company continues to work out internal monitoring tools and it is revamping the appeals process for banned or suspended accounts. But the company will also begin accepting reports from users.