What you need to prove
- The words are defamatory: they would lower you in the eyes of reasonable people.
- The words refer to you, by name or in a way that identifies you.
- The words were published to at least one other person. A message read by one other member of a WhatsApp group can be enough.
Libel (written, broadcast and online posts) is actionable without proving financial loss. Slander (spoken words) usually needs proof of loss, with some exceptions in sections 4 and 5 of the Act.
Common defences
- Justification (truth) under section 8
- Fair comment / honest opinion on a matter of public interest
- Absolute and qualified privilege
- Apology and offer of amends, which can reduce damages
Online posts and anonymous accounts
Section 114A of the Evidence Act 1950 can presume that the owner of an account published what appears on it. If the poster is anonymous, the High Court can order platforms or service providers to disclose identity through a Norwich Pharmacal order. Posts can also raise issues under section 233 of the Communications and Multimedia Act 1998, but that is a criminal route decided by the Public Prosecutor; a civil claim is usually the more direct remedy.
What to do first
- Screenshot everything with the URL, date and account visible.
- Note who has seen it and any harm caused (lost clients, messages received).
- Don't reply in anger online. It can make matters worse.
- Speak to a lawyer about a letter of demand for takedown, retraction and apology.
Remedies
General and aggravated damages, injunctions to stop further publication, orders to remove content, and published apologies. In urgent cases the High Court can grant an interim injunction, but the threshold is high.
FAQ
Can I sue for a Facebook or TikTok post?
Yes. Online posts are treated on the same principles as print. What matters is the meaning, identification and publication.
Is a private WhatsApp group message defamatory?
It can be. If it carries a defamatory meaning, refers to you, and at least one other member read it, it has been published. The Federal Court has warned that half-truths in group chats can be actionable.
Can I find out who is behind an anonymous account?
Often, yes, through a court disclosure (Norwich Pharmacal) order against the platform or service provider.
How long do I have to sue?
Generally six years from publication, under section 6(1)(a) of the Limitation Act 1953. Defamation claims are still time-sensitive. Treat it as urgent and get advice on your exact deadline straight away, as evidence also disappears quickly online.