Fraudulent Social Media Ad: The Platform Compensates the Injured Consumer

This page is a translation of the original Portuguese text, provided for convenience. It deals with Brazilian law. If there is any discrepancy, the Portuguese version prevails. Read the original in Portuguese

Digital platforms that display paid ads for nonexistent products and services can be held liable for the losses they cause consumers whenever they fail in their duty of care in running the ads and profit directly from the fraudulent promotion.

Scams that pose as legitimate offers have become routine online. Stores that never ship the product, supposed investments with guaranteed returns, and services that simply do not exist circulate every day on social networks, search engines, and marketplaces. Nearly all of these schemes have one thing in common: paid promotion. The ad reaches the victim only because someone bought the advertising space and the platform delivered it to a targeted audience.

This observation raises an uncomfortable question. When a social network is paid to distribute a fraudulent ad and shows it to consumers as if nothing were wrong, how much responsibility does it bear for the harm that follows? The answer requires separating the role of a mere content host from the role of an economic actor that profits from running advertising.

The Duty of Care in Displaying Paid Ads

Paid advertising is not spontaneous user content. It is a service the platform provides, and the platform sells it, prices it, and operates it. By offering targeting tools, charging for delivery, and deciding which ads appear to which profiles, the network takes an active position in the chain that brings the offer to the consumer.

From that position comes a duty of care proportional to the risk the platform itself creates. Anyone who builds a system capable of sending commercial messages to millions of people has the burden of adopting minimum controls to verify advertisers and screen out obvious fraud. This does not mean requiring advance review of every word. It means requiring diligence that matches the profit earned and the technology available.

Failure to meet this duty shows up in concrete signs: no identity check of the advertiser at all, repeat appearances by profiles that have already been reported, and complaints about the same scam that are repeatedly ignored. When a platform turns a blind eye to strong signs of fraud and keeps profiting from the ad, its omission is no longer neutral. It becomes part of the cause of the loss.

Legal Grounds for Holding the Platform Liable

Brazil’s Consumer Protection Code (Código de Defesa do Consumidor) provides the central framework for the analysis. Article 14 establishes the strict liability of service providers for defects in the services they provide, including insufficient or inadequate information about how the service is to be used. Running a clearly fraudulent ad, with no containment mechanism of any kind, is a defect in the ad intermediation service.

The concept of the supply chain adds to this. Article 7, sole paragraph, and Article 25, paragraph 1, of the same code establish joint and several liability for everyone who takes part in placing a product or service on the market. A platform that makes the offer possible, targets it, and is paid for it is part of that chain, even if it is not the direct seller.

There is also the principle that an offer is binding. Article 30 provides that any information or advertising that is published binds the supplier and becomes part of the contract. Article 37 prohibits deceptive advertising, defined as advertising capable of misleading the consumer about the existence, characteristics, or reliability of the product. An ad for a nonexistent service is the purest example of deception.

Brazilian court decisions have been moving toward distinguishing organic content, freely generated by users, from contracted and paid advertising. In the first case, liability tends to depend on notice. In the second, the direct economic link places the platform closer to the position of a supplier and triggers a stricter liability regime.

From that position comes a duty of care proportional to the risk the platform itself creates.

The Limits of Brazil’s Marco Civil da Internet

Article 19 of the Marco Civil da Internet (Brazil’s Internet Civil Rights Framework) makes an internet provider’s liability for third-party content conditional on a specific court order for removal that the platform failed to obey. The rule aims to protect freedom of expression and prevent private censorship of what users say.

That provision, however, was designed for spontaneous content, not for paid ads. Paid advertising is not a third party’s statement passively hosted by the platform. It is a commercial service that the platform itself sells, organizes, and delivers. Giving it the same shield that protects organic content would reward those who turn fraud into a revenue stream.

This distinction is decisive in practice. It undercuts the argument, often raised by social networks, that they can be held liable only after a prior court decision. Because the claim concerns a defect in a service the platform itself provides, liability does not depend on prior notice and is measured by the failure of the duty of care in running the ad.

What the Injured Consumer Can Demand

A consumer who suffers a loss from a fraudulent ad has claims that can be combined. The first is compensation for material damages, covering the amount actually paid and other expenses resulting from the scam, with monetary adjustment and interest from the date of payment.

The second is compensation for moral damages (non-economic harm). It is available when the frustration goes beyond mere annoyance, especially in cases of improper use of data, exposure to repeated fraud, or careless handling of the effort to resolve the problem. A platform’s repeated running of the same scheme strengthens the claim.

Preserving evidence is essential to establishing liability. Screenshots of the ad, the advertiser’s profile, payment receipts, and the entire history of contact make up the body of proof. Recording the date, the link, and the way the ad was displayed helps show that it was promoted and paid for.

The solution can begin through administrative channels, with a formal complaint to the platform and to consumer protection agencies, and move to the courts if no voluntary redress is offered. On either path, the focus is on the failure of the duty of care and on the economic benefit the platform derived from the fraudulent advertising.

Frequently Asked Questions

Is the platform always liable when an ad is fake?

Not automatically. Liability depends on showing that the network failed in its duty of care in running the ad, for example by ignoring clear signs of fraud, by failing to verify the advertiser even minimally, or by repeatedly displaying schemes that had already been reported. The fact that the ad is paid for and generates revenue for the platform brings the case closer to the strict liability of service providers under the Consumer Protection Code.

Does the Marco Civil exempt a network that merely displayed the ad?

The conditional immunity in Article 19 of the Marco Civil was designed for spontaneous user content, not for contracted and paid advertising. Because a paid ad is a service sold and operated by the platform itself, the tendency is to subject it to the consumer protection regime, under which liability does not depend on a prior court order and is measured by the failure in providing the ad intermediation service.

What evidence should the consumer keep?

You should preserve screenshots of the ad and the advertiser’s profile, payment receipts, messages exchanged, and any record showing the date and the promoted format of the ad. This collection makes it possible to prove the deception, the link between the ad’s display and the loss, and the economic benefit the platform obtained. These are the central elements in supporting a claim for material and moral damages.

As informações deste artigo são de caráter informativo e não substituem consulta jurídica individualizada. Cada caso possui particularidades que exigem análise específica.