What Just Happened

On 9 June 2026, the UK's media regulator Ofcom published a new set of rules for social media companies. The rules say that platforms like X and TikTok must take action quickly when illegal content starts spreading fast during a crisis. The rules are part of a broader system called the Online Safety Act, which became law in 2023.

This wasn't a surprise decision. Ofcom had been planning this step since it published a roadmap back in October 2023. That roadmap said crisis response would be a priority. Now, nearly three years later, these plans are becoming actual, enforceable rules.

What the New Rules Actually Say

The rules focus on specific types of illegal content: material related to terrorism, hate speech, and a few other serious crimes. These categories are already defined in the Online Safety Act itself.

When this kind of content starts spreading quickly during a crisis event, platforms must step in. They can do this in several ways: hide the content from feeds, use technology to catch it before it spreads, block people from sharing it further, or a combination of these. The goal is to stop the content from going viral in the first place, not just remove it after millions of people have already seen it.

Ofcom had already told platforms in 2025 that they needed to prevent terrorism content and deepfakes from spreading at the source level. These new crisis rules are the additional tool for when things move too fast for normal systems to handle.

The Legal Backbone

The Online Safety Act gives Ofcom the power to create and enforce codes of practice that all large social media platforms must follow. If a platform ignores these codes, it's not automatically breaking the law — but it puts the platform in a weak position in any enforcement case. For the largest platforms, the penalties can be steep: up to ten percent of the company's worldwide earnings.

The Guardian reported on 9 June 2026 that Ofcom specifically named X and TikTok as platforms that must adopt these measures. This is not a suggestion. It's an order backed by law.

Why Crisis Moments Break Normal Systems

There's a pattern in what happens when a crisis hits. In August 2024, when the Southgate riots erupted, the normal systems platforms use to catch and remove illegal content got overwhelmed. Content that would normally be caught within hours reached hundreds of thousands of people first. This happened again after terrorist attacks in France and New Zealand in previous years.

The problem is timing. A crisis creates a surge of posts that spreads faster than human reviewers can handle, and it spreads faster than many automated systems can filter. By the time a post is removed, millions have already seen it.

Ofcom's approach tries to prevent this by having systems ready to go before a crisis hits. The idea is to stop content from spreading to millions in the first place, rather than cleaning up afterward. Whether this will actually work depends on how well platforms set up their systems and how fast they can respond when a trigger activates.

The Practical Challenge for Platforms

For social media companies, this creates real work. They need to figure out how to detect when content fits the legal definitions in the Online Safety Act — whether something really is terrorism-related material, for instance. This is tricky because it often requires human judgment, and the rules require speed. A system that takes hours to decide won't work if the content needs to be stopped in minutes.

There's another layer of complexity. Many platforms operate globally, which means a crisis in the UK might be handled differently from the same crisis in another country. The EU, for example, has its own different rules under the Digital Services Act. Platforms will have to figure out whether they can apply UK-specific crisis measures without affecting how the rest of the world uses their service, or whether activating them has wider consequences.

Ofcom's move also signals a shift in how regulators think about platform responsibility. Instead of just requiring platforms to respond to problems after they happen, regulators are now saying platforms should be prepared in advance. This idea is spreading — other regulators around the world are watching how the UK does this.

What Happens Now

Platforms will be monitored through their regular transparency reports to Ofcom. If they don't appear to be implementing the crisis protocol properly, Ofcom can take enforcement action. It's more likely to happen gradually through supervision rather than through sudden penalties, but the direction is clear: comply, or face consequences.

The real test will come when a crisis actually happens. Whether a mandatory protocol like this one can actually prevent the real harm that comes from illegal content going viral is something we'll have to wait and see. For now, what's important is that the UK has drawn a line about what it expects from platforms, and it has legal tools to enforce it.