Someone posted lies about you online

How the law usually works

Defamation generally concerns a false statement of fact that is communicated to at least one person other than you and causes, or is likely to cause, reputational harm. A post, review, video, comment, image caption, or message can qualify. Republishing someone else’s accusation may create separate liability.

The main issues usually include:

• Fact or opinion: “I dislike this business” is usually opinion. “This business stole customer money” may be treated as a factual allegation, especially if it implies evidence that is not provided.
• Truth: Truth is usually a complete defence, although proving it may require documents or witnesses.
• Identification: Readers must reasonably understand that the statement refers to you, even if your name is not used.
• Publication: The material must have reached someone else. A private message may still count if sent to a third party.
• Harm: Some places require proof of actual or serious reputational harm. Some statements are treated as inherently harmful, but the details differ by jurisdiction.
• Defences: Depending on the place, these may include truth, honest opinion, privilege, consent, fair comment, responsible communication on matters of public interest, or lack of knowledge.
• Retraction and correction: A correction or apology may reduce harm and sometimes affects available remedies, but it does not automatically eliminate liability.

A separate issue is platform responsibility. In the United States, Section 230 of the Communications Decency Act often protects online services from being treated as the publisher of content created by users, although it does not generally protect the person who wrote or posted the material. Other countries have different intermediary rules and procedures.

Privacy or data-protection law may apply if the post reveals personal data, medical information, an address, intimate images, or confidential material. Those rules are not the same as defamation and may provide complaint, removal, or correction routes even when a defamation claim is uncertain.

Common processes

1. Check for immediate danger. If the post includes a credible threat, stalking, extortion, or instructions that could place you in immediate danger, people commonly contact emergency services first. They may also contact a relevant platform, workplace, school, or safeguarding service.

1. Preserve evidence. People commonly save screenshots showing the full post, account name, date, URL, comments, and sharing information. They may also save the original page as a PDF, record screen video, keep downloaded files, and note witnesses who saw it. Evidence should be preserved without altering, threatening, or publicly targeting the poster.

1. Assess the statement and the likely defendant. A person may identify whether the wording is factual or opinion, who saw it, whether it is still available, and whether the poster can be identified. Anonymous publication may require a court order or other legal process to obtain account information.

1. Report the material. People commonly use the platform’s reporting, privacy, impersonation, harassment, or defamation process. Platforms may remove or restrict material under their own rules, but reporting does not necessarily establish legal liability.

1. Request a correction or removal. A short, factual request may identify the precise false statements, explain the correction, and ask for removal, a correction, or preservation of relevant records. A lawyer’s formal letter may also request an undertaking not to repeat the statement and compensation. Aggressive or repeated contact can create additional problems.

1. Consider practical reputation measures. People sometimes inform affected customers, employers, family members, or professional bodies with a calm correction supported by evidence. They may ask search engines to remove certain results where a privacy or data-protection right applies. Publicly repeating the allegation can increase its reach.

1. Explore formal legal action. Depending on the country, this may involve a demand, mediation, a privacy or data-protection complaint, an application to identify an anonymous publisher, or a court claim. Possible remedies include removal or correction, an injunction, damages, and legal costs. Courts do not always order a platform to remove lawful user content.

Deadlines and time limits

Defamation limitation periods are often short. Common ranges include about one year in many United States jurisdictions, one year in England and Wales for many defamation claims, and commonly one to three years in Canadian provinces and Australian states, depending on the claim and applicable legislation.

A new online view does not always restart the limitation period. Some jurisdictions apply a “single publication” approach, while continuing publication, republication, or a new version may raise different questions. Privacy, data-protection, harassment, breach-of-confidence, and personal-injury claims can have different deadlines.

Platform reporting deadlines may be much shorter, and preservation requests are more useful when made promptly. Confirm the applicable deadline with the court or a licensed attorney where you live.

Documents that usually matter

• Screenshots, saved web pages, URLs, timestamps, and screen recordings
• The original files, posts, videos, messages, and comment threads
• Evidence showing who could see the material and how widely it spread
• Documents proving the statement is false
• Evidence of financial loss, lost work, cancelled business, or professional consequences
• Messages from people who relied on or reacted to the allegation
• Records of emotional or medical effects, where legally relevant
• Platform reports, responses, removal notices, and account information
• Copies of correction requests, formal letters, and any replies
• Evidence identifying an anonymous account, obtained lawfully

How it differs by jurisdiction

United States: The First Amendment strongly protects speech, and public officials and public figures generally must meet the demanding “actual malice” standard—knowledge of falsity or reckless disregard for truth. State law controls many details, including elements, damages, privileges, anti-SLAPP procedures, and limitation periods. Section 230 often protects platforms from liability for user content, but state and federal laws can create exceptions or separate claims.

England and Wales: The Defamation Act 2013 requires a statement to have caused, or be likely to cause, serious harm to reputation; bodies trading for profit generally must show serious financial loss. The Act includes statutory rules on truth, honest opinion, publication on a matter of public interest, and a one-year limitation period, subject to specific exceptions and court powers.

Canada: Defamation law is mainly based on common law, with provincial legislation affecting procedure, limitation periods, and remedies. The Supreme Court of Canada has recognized a defence of responsible communication on matters of public interest. Canadian provinces also have different rules concerning online publications, anti-SLAPP applications, and intermediary or platform issues.

Australia: Defamation is governed largely by uniform state and territory legislation, including a serious-harm threshold and a single-publication rule, subject to exceptions. The details of defences, correction offers, limitation periods, and available remedies are statutory and can vary. Privacy protection is not a single general tort covering every false online statement; other laws may apply to misuse of private information, harassment, or personal data.

When people consult a lawyer

A licensed lawyer is particularly useful when:

• The accusation involves crime, fraud, professional misconduct, or sexual wrongdoing.
• The post is spreading quickly or has caused major financial or professional harm.
• You are a public figure, public official, business, journalist, or publisher.
• The poster is anonymous or located in another country.
• The material includes private data, intimate images, threats, or impersonation.
• You have received a legal demand or court papers.
• The limitation deadline may be close.
• You are considering a public response, injunction, or substantial damages claim.

A lawyer can assess jurisdiction, evidence, defences, costs, insurance, and whether litigation is proportionate. Legal aid, bar-association referral services, and specialist reputation or privacy clinics may offer initial assistance in some places.