Cease-and-desist letters — how to write one that works

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A well-drafted warning letter ends many disputes at near-zero cost. The standard structure, the traps, and a template.

A cease-and-desist letter is the cheapest and most often skipped step in enforcement. Many matters — especially accidental use of an image, music or logo — end right here, because the infringer simply did not know they were infringing.

When to send one

Sending before suing or seeking administrative penalties makes sense when the conduct looks inadvertent or born of ignorance, when the other side is a partner, customer or someone you want to keep a relationship with, or when you are unsure of the scale of harm.

Do not rely on a warning letter alone when dealing with large-scale counterfeiting, organised conduct, or a repeat infringer — those belong in a formal route (see the four enforcement routes).

The structure of an effective letter

A good letter has four parts:

  1. Your right. State the right, with the title or registration number where you have one. For unregistered copyright, identify the work and your evidence of ownership.
  2. A description of the infringement. Pinpoint the object, its specific location (URL, position, product), and why it infringes. The more specific, the harder to deny.
  3. Specific demands. Removal, cessation, destruction or compensation — with figures and basis where possible.
  4. A deadline for reply and the consequence of silence (you will escalate to administrative, civil action or a takedown under Decree 17/2023/ND-CP).

Four traps to avoid

  1. Threatening without a real right. Sending a letter when you are unsure you are the lawful owner can backfire — the other side gains grounds to counterclaim.
  2. Not preserving evidence first. Digital content can vanish the moment the letter arrives. Collect evidence beforehand — see gathering evidence.
  3. Vague demands. "Please cease infringing" is far weaker than "remove the post at URL … and compensate … within 7 days".
  4. Insulting language or baseless criminal threats. This damages your position if the matter reaches court.

A reference template

CEASE-AND-DESIST NOTICE — INTELLECTUAL PROPERTY INFRINGEMENT

To: [infringer]

I/we are [name], the owner of the [copyright/trademark/patent/…] in [subject matter], under [title/certificate number or basis of the right].

I found [the infringing object] at [specific location/URL] that [describe the conduct]. This infringes the right above under [relevant provision].

I ask that you, within [N] days of receiving this letter: (1) cease and remove [object]; (2) [compensate/correct if applicable].

If I receive no response by then, I will have no choice but to refer the matter to the competent authority, and any resulting costs will be yours.

Sincerely, [Signed, dated]

This is a reference template, not legal advice. For high-value matters, have a lawyer or IP representative review it before sending.

Cited documents

Sources