Social media has changed how we communicate, but it has not changed the legal reality that words have consequences. In the past, a defamatory remark might have been whispered in a pub or printed in a local newsletter with limited reach. Today, a single post on X (formerly Twitter), Facebook, or Instagram can reach hundreds of thousands of people in seconds. This speed and scale have made social media defamation one of the most common reasons people seek legal advice.

The recent Full Court of the Federal Court decision in Latham v Greenwich [2024] FCAFC 93 provides a clear map for anyone dealing with online attacks. It confirms that the legal system takes digital publications seriously, even when they consist of only a few sentences. If you have been targeted online, understanding the "serious harm" requirement is your first step towards protecting your reputation. In Victoria, which is the default jurisdiction for this analysis and where Stage 2 reforms commenced on 11 September 2024, these requirements are strictly applied.

The Serious Harm Threshold in Social Media Defamation

In 2021, Australian defamation law underwent significant changes. One of the most important additions was Section 10A of the Defamation Act 2005. This section introduced a "serious harm" threshold. This means a plaintiff must prove that the publication has caused, or is likely to cause, serious harm to their reputation. For a small business, this harm must include serious financial loss. It is important to note that under the uniform legislation, corporations with 10 or more employees generally cannot sue for defamation.

This law was designed to stop trivial claims from clogging the courts. However, as the case of Latham v Greenwich [2024] FCAFC 93 shows, a single social media post can easily cross this threshold. In that matter, a single tweet resulted in a $140,000 damages award. The court found that the nature of the comments and the size of the audience made the harm serious, even without a long list of witnesses testifying that they thought less of the victim.

When assessing your situation, we look at the "imputations" or the underlying meanings of the words used. If someone calls you a "thief" or "unprofessional" on a public Facebook group, the harm is often presumed to be serious because of the nature of the allegation. You can learn more about how this applies to business reputation in our guide on removing bad Google reviews.

Lessons from Latham v Greenwich

The appeal in Latham v Greenwich [2024] FCAFC 93 is a significant moment for internet defamation law in Australia. The Full Court dismissed the appeal and confirmed several important points for anyone considering legal action:

  • Reach matters: The court considers how many people saw the post. On platforms like X or Facebook, where content is shared quickly, the potential for harm grows exponentially.
  • Context is everything: The court looks at the entire publication, not just a single word. In this case, the aggressive tone of the post contributed to the finding of serious harm.
  • Direct evidence isn't always required: You do not necessarily need to call ten friends to court to say they read the post and changed their opinion of you. The court can infer serious harm based on the circumstances of the post and its likely impact on a reasonable reader.
  • Aggravated damages are real: If the person who defamed you acted with malice or refused to apologise when they clearly should have, the court can increase the payout to compensate for the additional distress. It is also vital to consider the statutory cap on non-economic damages, which is indexed annually and stood at $459,000 as at 1 July 2023.

This decision provides confidence to those who have been unfairly attacked. It shows that the "serious harm" test is not an impossible barrier, but a sensible filter that still protects people from genuine character assassination.

The Mandatory Concerns Notice

Before you can start legal proceedings in an Australian court, you must serve the other party with a concerns notice. This is a formal document that outlines exactly what was said, why it is false, and the serious harm it has caused. Under the 2021 reforms, this is a compulsory step.

The person who posted the content has 28 days to respond. They might offer an apology, a correction, or a financial settlement. This process is often where we achieve the best results for our clients. Many people who post defamatory content on social media do so in a moment of anger and realise their mistake once they receive a formal legal notice from a solicitor. If you are worried about the clock ticking on your ability to send this notice, read our advice on preserving your defamation claim.

Digital Intermediaries and the 2024 Reforms

A common question we receive is whether you can sue the platform itself, like Facebook or Google. Recent landmark laws in NSW and the ACT, which are being adopted across Australia, have clarified this. These Stage 2 reforms, which commenced in Victoria on 11 September 2024, generally protect "digital intermediaries" from liability if they are just providing the space for the comment and have a clear process for taking down defamatory content.

The legal landscape for intermediaries has been defined by High Court authority, notably Fairfax Media Publications Pty Ltd v Voller [2021] HCA 27 regarding liability for third-party comments, and Google LLC v Defteros [2022] HCA 27 concerning search engine results. If you report a post and the platform removes it within seven days, they are likely protected from being sued. However, this protection does not extend to the person who wrote the post. The individual who made the original comment remains fully liable for the damage they cause. In some cases, we can use legal tools to identify anonymous posters, a process we explain in our article on tracking down rogue customers.

Defences Against a Defamation Claim

If you have received a concerns notice, or if you are worried about how a defendant might fight back, it is important to know the common defences. Under the Defamation Act, these include:

  • Justification (Truth): If the statement is substantially true, it is not defamation.
  • Honest Opinion: This applies if the comment was an opinion on a matter of public interest based on proper material.
  • Public Interest: A newer defence that protects publishers if they reasonably believed the publication was in the public interest.
  • Innocent Dissemination: Often used by libraries or newsagents, and now adapted for digital intermediaries who were unaware of the defamatory nature of the content.

The Latham v Greenwich [2024] FCAFC 93 appeal also dealt with the defence of "qualified privilege" for a reply to an attack. The court found that this defence did not apply because the response was not proportional to the original comments. This is a reminder that even if you feel you are defending yourself, your response must stay within legal bounds. Detailed research on social media and defamation law suggests that the courts are becoming stricter about what constitutes a "fair" response online.

Practical Steps You Can Take Right Now

If you believe you have been defamed on social media, your actions in the first 24 hours are important. The internet is fast, and evidence can disappear.

  1. Take Screenshots: Do not just copy the link. Capture the post, the date, the number of likes, shares, and the comments section. This evidence is needed to prove the extent of the publication.
  2. Do Not Engage: It is tempting to reply and defend yourself. This often makes the situation worse and can give the other party a "qualified privilege" or "honest opinion" defence.
  3. Identify the Author: If the post is anonymous, look for clues or contact a lawyer to discuss an application for preliminary discovery to find the person behind the account.
  4. Check the Date: You generally have 12 months from the date of publication to start proceedings. While this can be extended to three years in some cases, waiting is rarely a good strategy.
  5. Seek Legal Advice: Defamation is a technical area of law. A solicitor can help you determine if you meet the serious harm threshold and provide a fixed-fee quote for a concerns notice.

The legal environment for defamation law in Australia is shifting towards protecting people from serious reputational damage while preventing minor squabbles from taking up court time. According to recent government reports, these modern laws aim to balance free speech with the right to a reputation. The Latham v Greenwich [2024] FCAFC 93 decision is a reminder that the law still has teeth, and those who use social media to spread falsehoods can be held to account for significant sums.

This is general information only, not legal advice. You should obtain independent legal advice about your specific circumstances.