Misinformation, disinformation and plain mistakes
People use several words loosely. Misinformation usually means false or misleading information shared without intent to deceive, such as a relative passing on an outdated health rumour. Disinformation is false content spread deliberately, for example to influence opinion or make money. Much of what circulates is a blend: something starts as a mistake or a manipulation and is then repeated by well-meaning people who believe it.
This distinction matters because it shapes the response. Most people who share a false claim are not trying to cause harm, so assuming bad faith tends to make conversations harder.
How a false claim gets traction
False claims rarely spread because of a single cause. Several features of how platforms work tend to combine.
Sharing is easy and fast. Reposting takes a tap, and few people pause to check first. A claim can pass through many hands before anyone asks where it came from.
Emotion drives reactions. Content that provokes anger, fear, surprise or amusement often prompts more reactions than neutral content. Because recommendation algorithms commonly respond to engagement, emotionally charged posts can be shown to more people, whether or not they are accurate. The platforms differ and their systems change, so it is safest to say this is a common pattern rather than a universal rule.
Social proof. A post that has been shared widely feels more credible. We also tend to trust friends and family more than strangers, so a claim shared by someone close often gets less scrutiny.
Echo chambers and filter effects. People tend to follow others who share their views, and feeds can reinforce that. Researchers disagree about how strong this effect is, but encountering the same claim repeatedly, from several sources that all seem independent, can make it feel established.
Repetition. A claim that is familiar can start to feel true simply because we have seen it before. This is a well-known quirk of human thinking.
Common forms of misleading content
- Old content in a new setting. A real photo or video from a different time or place is presented as current news.
- Edited or generated media. Images can be altered, and AI image generators and voice cloning make convincing fakes easier to produce. These can fool careful people, so a realistic look is not evidence.
- Out-of-context quotes. A single sentence is cut from a longer statement so that it changes meaning.
- Misleading headlines and charts. The headline claims more than the article says, or a graph uses a stretched axis to exaggerate a change.
- Impersonation. Fake accounts or lookalike pages mimic news outlets, officials or organisations.
- Satire taken seriously. Jokes lose their label as they are screenshotted and reposted.
- Chain messages. Private group chats and messaging apps spread claims that are hard for anyone outside the chat to see or correct. Because end-to-end encryption keeps those messages private, the problem is difficult for platforms to address.
Who spreads it, and why
Motives vary. Some people want attention, followers or advertising income, since attention can be turned into money. Others have political or ideological goals. Many simply want to warn friends about something that seems urgent, and the same instinct that makes us share useful safety tips also makes us share false alarms. Scams use similar tricks, and phishing scams often borrow the urgency of a viral rumour.
Automated accounts and coordinated groups can also amplify content, but it is easy to overestimate their role. Ordinary users sharing in good faith are often a large part of the spread.
Habits that help you check
None of these guarantees accuracy, but together they reduce mistakes.
- Pause when you feel a strong reaction. An urge to share immediately is a signal to slow down.
- Check the source. Who published it? Is there a named author, a track record and a way to contact them? Look carefully at the web address, because lookalike domains imitate real sites.
- Read beyond the headline. Does the article actually support what the headline says?
- Look for corroboration. Are reliable outlets reporting the same thing independently? Be cautious if only one unfamiliar source says it.
- Check dates and places. Searching for the image with a reverse image search often reveals earlier appearances.
- Check what is missing. A quote without a date, source or surrounding context deserves suspicion.
- Consider your own bias. Claims that confirm what you already believe usually get less scrutiny, so apply the same checks to them.
- Use fact-checking organisations carefully. They can be a helpful starting point, but look at their methods and reasoning rather than only their verdict.
When you realise you shared something wrong
It happens to almost everyone. Deleting the post or adding a correction is usually enough. A brief, calm note that you were mistaken is more effective than silence, and it helps normalise correcting errors.
Limits of individual effort
Verifying every claim is unrealistic, and it is reasonable to feel overwhelmed. A practical approach is to be most careful with claims that are surprising, urgent, health- or money-related, or likely to affect others if wrong. For everything else, it is fine to say “I’m not sure” and leave it unshared.