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Deepfake fraud: what it is and how to defend against it

Deepfake scams are spreading fast. Learn how they work, why they’re dangerous, and what businesses can do to stop them.

Deepfakes have moved from internet curiosities to a serious global concern. Once seen as quirky AI experiments, they are now powerful tools used in fraud, misinformation, and even identity theft. Whether it’s a fake video of a CEO making a statement that tanks stock prices, a scammer cloning an employee’s voice to trick finance teams, or a politician appearing to say something inflammatory they never actually said — deepfake fraud is becoming one of the most urgent digital threats of our time. In this guide, we explain what deepfake fraud is, how it works, and the practical steps individuals and businesses can take to defend against it.

1. What is deepfake fraud?

A deepfake is a piece of content — typically a video, audio recording, or image — generated or manipulated using artificial intelligence. The word combines “deep learning” (a form of AI) and “fake.” Deepfake fraud occurs when these AI-generated creations are used to deceive, mislead, or commit crimes. Unlike obvious photoshopped images, deepfakes can be alarmingly realistic, making them far harder to detect.

Fraudsters increasingly use deepfakes to exploit trust. Imagine receiving a call from what sounds like your manager, instructing you to transfer funds. Or seeing a video of a company leader announcing a merger that never happened. These scenarios are no longer hypothetical; they’re already being reported worldwide.

2. How do deepfakes work?

Deepfakes are usually built using neural networks called Generative Adversarial Networks (GANs). GANs operate in a feedback loop: one AI model generates content while another critiques it until the result becomes indistinguishable from real-world data. This allows fraudsters to create convincing videos, voices, and images from relatively small datasets.

Voice cloning tools can recreate a person’s speech patterns with just a few minutes of recorded audio. Similarly, face-swapping algorithms can graft one person’s likeness onto another’s body in a video. When combined with scripted text, scammers can mass-produce fake speeches, phone calls, or even live video calls.

3. Real-world examples of deepfake fraud

  • Business email compromise with voice cloning: In 2019, criminals used a deepfake voice to impersonate a CEO and trick an employee into transferring €220,000 to their account.
  • Political disinformation: Fake videos of politicians have circulated online, undermining trust in elections and democratic processes.
  • Financial scams: Stock prices have been manipulated using fake audio or video clips of executives making false claims.
  • Identity theft: Fraudsters create fake IDs, passports, or biometric data to pass verification systems.
  • Revenge and harassment: Deepfake pornography is an especially harmful misuse, affecting victims’ reputations and mental health.

These cases illustrate that deepfake fraud is not just a nuisance but a genuine economic, political, and social threat.

4. Why deepfake fraud is so dangerous

Deepfake fraud poses unique risks compared to traditional scams:

  • High believability: AI-generated content can be nearly indistinguishable from reality.
  • Low cost: Free or cheap tools allow fraudsters to create convincing deepfakes without technical expertise.
  • Scalability: A single fraudster can generate thousands of fake videos or calls in a short time.
  • Psychological impact: People instinctively trust their eyes and ears, making deepfakes harder to challenge.
  • Reputational damage: Even when proven fake, deepfakes can leave lasting suspicion or harm.

5. How to spot a deepfake

While deepfakes are improving rapidly, they often leave subtle clues:

  • Visual inconsistencies: Blurred edges, strange blinking patterns, or mismatched lighting.
  • Audio anomalies: Robotic intonation, unnatural pauses, or background noise mismatches.
  • Metadata gaps: Files with missing or inconsistent metadata can signal manipulation.
  • Behavioural red flags: Uncharacteristic requests (e.g. urgent money transfers) should always raise suspicion.

However, relying solely on manual spotting is insufficient. Automated defences are needed at scale.

6. Defensive technologies and tools

Organisations are developing tools to detect and counter deepfakes:

  • AI detectors: Tools like Microsoft’s Video Authenticator and Reality Defender analyse pixel-level artefacts to identify manipulated media.
  • Watermarking and provenance tracking: The Coalition for Content Provenance and Authenticity (C2PA) is working on standards to embed content authenticity signals.
  • Biometric liveness detection: Used in ID verification, these systems ensure a real person is present rather than a deepfake or static photo.
  • Blockchain verification: Some solutions use blockchain to log original content, making alterations easier to detect.

7. Steps businesses can take to defend against deepfake fraud

Defence is not just about technology but also policy and awareness. Businesses should:

  • Implement verification procedures: Always confirm unusual requests, especially involving finance, using multiple channels.
  • Educate employees: Train staff to recognise deepfake red flags and respond cautiously to suspicious media.
  • Deploy trust infrastructure: Use APIs like Ruvia’s Trust API to detect fraud signals, identity spoofing, and manipulated content.
  • Monitor online mentions: Track for unauthorised use of executive likenesses or voices.
  • Develop crisis response plans: Prepare for scenarios where deepfakes are used to damage brand reputation or manipulate markets.

8. Protecting individuals from deepfake abuse

For individuals, particularly those in the public eye, protection measures include:

  • Limiting the amount of personal audio and video shared publicly.
  • Using watermarking or provenance tools when publishing sensitive material.
  • Regularly searching for potential misuse of your likeness online.
  • Reporting deepfake harassment promptly to platforms and law enforcement.

9. The role of regulation

Governments are beginning to act. The UK’s Online Safety Act includes provisions to address deepfake pornography and harmful content. The EU’s AI Act requires labelling of synthetic media in certain contexts. While regulation alone won’t stop deepfakes, it creates accountability for both creators and distributors.

10. The future of deepfake fraud and defence

Deepfakes will only get more realistic. Defence will rely on layered approaches: better AI detectors, stronger authentication, user education, and regulatory frameworks. Over time, trust infrastructure — APIs and systems that verify people, content, and behaviour — will become as essential to online life as antivirus software is to computers.

Final thoughts

Deepfake fraud is one of the defining challenges of the digital age. It exploits the very senses we rely on most — sight and sound — to deceive us. While the risks are significant, they are not insurmountable. With vigilance, technology, and robust trust infrastructure, we can defend against deepfake abuse and preserve confidence in our online interactions. The key is not to fear AI, but to prepare for its misuse with the right safeguards in place.

Frequently asked questions

What is deepfake fraud?

Deepfake fraud is the use of AI-generated or manipulated video, audio, or images to deceive people for malicious purposes such as financial scams, identity theft, or disinformation.

How can you spot a deepfake?

Look for visual inconsistencies like unnatural blinking or lighting, audio glitches such as robotic intonation, or behavioural red flags like unusual urgent requests.

Can deepfakes bypass identity verification?

Yes, deepfake images or videos can trick weak verification systems, which is why advanced liveness detection and trust APIs are crucial.

What technologies exist to detect deepfakes?

Detection tools include AI-based video analysers, watermarking and provenance standards, blockchain verification, and biometric liveness checks.

How can businesses protect themselves from deepfake fraud?

Businesses should use multi-channel verification for sensitive requests, educate employees on deepfake risks, deploy fraud detection APIs, and develop crisis management plans.

What should individuals do if they are targeted by a deepfake?

They should report the content to the hosting platform, notify law enforcement if fraudulent, and seek legal remedies if reputational damage occurs.

Is deepfake content illegal?

Not all deepfake content is illegal, but fraudulent, defamatory, or abusive deepfakes can violate laws on fraud, harassment, copyright, and identity misuse.

What role will regulation play in deepfake defence?

Regulations such as the UK Online Safety Act and EU AI Act introduce labelling requirements and penalties for harmful deepfake misuse, helping create accountability.

Will deepfake detection always be possible?

Detection will become harder as deepfakes improve, but advances in watermarking, forensic AI, and behavioural analysis should keep pace.

Why are deepfakes especially dangerous in finance and politics?

Because they can manipulate markets, influence elections, or erode trust in institutions, leading to serious economic and societal harm.