Deepfake Deception: Brazilian Criminals Used Faces of Celebrities to Swindle Millions

Rahul Sahi,
Rahul Sahi,
Intern - Policy & Advocacy, CyberPeace
PUBLISHED ON
Nov 4, 2025
10

Introduction

Given the era of digital trust and technological innovation, the age of artificial intelligence has provided a new dimension to how people communicate and how they create and consume content. However, like all borrowed powers, the misuse of AI can lead to terrible consequences. One recent dark example was a cybercrime in Brazil: a sophisticated online scam using deepfake technology to impersonate celebrities of global stature, including supermodel Gisele Bündchen, in misleading Instagram ads. Luring in millions of reais in revenue, this crime clearly brings forth the concern of AI-generative content having rightfully set on the side of criminals. 

Scam in Motion

Lately, the federal police of Brazil have stated that this scheme has been in circulation since 2024, when the ads were already being touted as apparently very genuine, using AI-generated video and images. The ads showed Gisele Bündchen and other celebrities endorsing skincare products, promotional giveaways, or time-limited discounts. The victims were tricked into making petty payments, mostly under 100 reais (about $19) for these fake products or were lured into paying "shipping costs" for prizes that never actually arrived.

The criminals leveraged their approach by scaling it up and focusing on minor losses accumulated from every victim, thus christening it "statistical immunity" by investigators. Victims being pocketed only a couple of dollars made most of them stay on their heels in terms of filing a complaint, thereby allowing these crooks extra limbs to shove on. Over time, authorities estimated that the group had gathered over 20 million reais ($3.9 million) in this elaborate con.

The scam was detected when a victim came forth with the information that an Instagram advertisement portraying a deepfake video of Gisele Bündchen was indeed false. With Anna looking to be Gisele and on the recommendation of a skincare company, the deepfake video was the most well-produced fake video. On going further into the matter, it became apparent that the investigations uncovered a whole network of deceptive social media pages, payment gateways, and laundering channels spread over five states in Brazil.

The Role of AI and Deepfakes in Modern Fraud

It is one of the first few large-scale cases in Brazil where AI-generated deepfakes have been used to perpetrate financial fraud. Deepfake technology, aided by machine learning algorithms, can realistically mimic human appearance and speech and has become increasingly accessible and sophisticated. Whereas before a level of expertise and computer resources were needed, one now only requires an online tool or app. 

With criminals gaining a psychological advantage through deepfakes, the audiences would be more willing to accept the ad as being genuine as they saw a familiar and trusted face, a celebrity known for integrity and success. The human brain is wired to trust certain visual cues, making deepfakes an exploitation of this cognitive bias. Unlike phishing emails brimming with spelling and grammatical errors, deepfake videos are immersive, emotional, and visually convincing. 

This is the growing terrain: AI-enabled misinformation. From financial scams to political propaganda, manipulated media is killing trust in the digital ecosystem.

Legalities and Platform Accountability

The Brazilian government had taken a proactive stance on the issue. In June 2025, the country's Supreme Court held that social media platforms could be held liable for failure to expeditiously remove criminal content, even in the absence of a formal order from a court. The icing on the cake is that that judgment would go a long way in architecting platform accountability in Brazil and potentially worldwide as jurisdictions adopt processes to deal with AI-generated fraud.

Meta, the parent company of Instagram, had said its policies forbid "ads that deceptively use public figures to scam people." Meta claims to use advanced detection mechanisms, trained review teams, and user tools to report violations. The persistence of such scams shows that the enforcement mechanisms still lag the pace and scale of AI-based deception.

Why These Scams Succeed

There are many reasons for the success of these AI-powered scams.

  1. Trust Due to Familiarity: Human beings tend to believe anything put forth by a known individual.
  2. Micro-Fraud: Keeping the money laundered from victims small prevents any increase in the number of complaints about these crimes.
  3. Speed To Create Content: New ads are being generated by criminals faster than ads can be checked for and removed by platforms via AI tools.
  4. Cross-Platform Propagation: A deepfake ad is then reshared onto various other social networking platforms once it starts gaining some traction, thereby worsening the problem.
  5. Absence of Public Awareness: Most users still cannot discern manipulated media, especially when high-quality deepfakes come into play.

Wider Implications on Cybersecurity and Society

The Brazilian case is but a microcosm of a much bigger problem. With deepfake technology evolving, AI-generated deception threatens not only individuals but also institutions, markets, and democratic systems. From investment scams and fake charters to synthetic IDs for corporate fraud, the possibilities for abuse are endless.

Moreover, with generative AIs being adopted by cybercriminals, law enforcement faces obstructions to properly attributing, validating evidence, and conducting digital forensics. Determining what is actual and what is manipulated has now given rise to the need for a forensic AI model that has triggered the deployment of the opposite on the other side, the attacker, thus initiating a rising tech arms race between the two parties.

Protecting Citizens from AI-Powered Scams

Public awareness has remained the best defence for people in such scams. Gisele Bündchen's squad encouraged members of the public to verify any advertisement through official brand or celebrity channels before engaging with said advertisements. Consumers need to be wary of offers that appear "too good to be true" and double-check the URL for authenticity before sharing any kind of personal information

Individually though, just a few acts go so far in lessening some of the risk factors:

  • Verify an advertisement's origin before clicking or sharing it
  • Never share any monetary or sensitive personal information through an unverifiable link
  • Enable two-factor authentication on all your social accounts
  • Periodically check transaction history for any unusual activity
  • Report any deepfake or fraudulent advertisement immediately to the platform or cybercrime authorities

Collaboration will be the way ahead for governments and technology companies. Investing in AI-based detection systems, cooperating on international law enforcement, and building capacity for digital literacy programs will enable us to stem this rising tide of synthetic media scams.

Conclusion

The deepfake case in Brazil with Gisele Bündchen acts as a clarion for citizens and legislators alike. This shows the evolution of cybercrime that profited off the very AI technologies that were once hailed for innovation and creativity. In this new digital frontier that society is now embracing, authenticity stands closer to manipulation, disappearing faster with each dawn.

While keeping public safety will certainly still require great cybersecurity measures in this new environment, it will demand equal contributions on vigilance, awareness, and ethical responsibility. Deepfakes are not only a technology problem but a societal one-crossing into global cooperation, media literacy, and accountability at every level throughout the entire digital ecosystem.

PUBLISHED ON
Nov 4, 2025
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