cloning attack

Cloning Attack Unveiled: Cybercriminals Use AI Voice Cloning in a $35 Million Heist



In a staggering display of cybercriminal sophistication, fraudsters have utilized AI voice cloning technology to orchestrate a massive heist, stealing up to $35 million. This audacious attack, currently under investigation in Dubai, highlights the growing concern surrounding the misuse of this cutting-edge technology by cybercriminals. Let’s delve into the details of this elaborate scheme and the implications it has for the cybersecurity landscape.

The Voice Cloning Heist

The intricate plot unfolded in early 2020 when the branch manager of a Japanese company in Hong Kong received a call from someone claiming to be the director of their parent business. The imposter delivered good news, stating that the company was set to make a significant acquisition. To facilitate the process, the manager was instructed to authorize transfers totaling $35 million. Accompanying emails from the director and a lawyer named Martin Zelner seemed to validate the legitimacy of the transaction. Trusting the apparent authenticity, the branch manager proceeded with the transfers.

Little did the branch manager know that they had fallen victim to an elaborate scam. Fraudsters had employed “deep voice” technology to clone the director’s voice, tricking the manager into authorizing the fraudulent transfers. A court document obtained by Forbes revealed that the United Arab Emirates (U.A.E.) sought assistance from American investigators in tracing $400,000 of the stolen funds, which had been deposited in U.S.-based accounts at Centennial Bank. The U.A.E., conducting an extensive investigation into the heist’s impact on local entities, believes that a vast network of at least 17 individuals was involved, channeling the pilfered money into bank accounts across the globe.

The Gravity of the Attack

The court document did not disclose specific details or the identities of the victims. Forbes reached out to the Dubai Public Prosecution Office and Martin Zelner for comments, but they had not responded at the time of publication. This incident marks only the second known case in which fraudsters have exploited voice-shaping tools to execute a heist. It surpassed the previous attempt, where criminals used similar technology to impersonate the CEO of a U.K.-based energy firm, endeavoring to steal $240,000 in 2019, as reported by the Wall Street Journal.

This U.A.E. case exemplifies the devastating consequences that high-tech swindles can inflict, emphasizing the growing concerns surrounding AI-generated deep fake images and voices in the realm of cybercrime.

Jake Moore, a cybersecurity expert at security company ESET and former police officer with the Dorset Police Department in the U.K., warns about the potential dangers posed by audio and visual deep fakes. He emphasizes that these advancements in technology pose significant threats to data, finances, and businesses. The manipulation of audio, in particular, is poised to increase in volume, creating an alarming attack vector that could ensnare unsuspecting individuals and organizations. Moore highlights the urgent need for education, awareness, and robust authentication methods to counter this emerging threat.

The Rise of Voice Cloning Technology

Voice cloning, once confined to the realm of fiction, has become readily accessible in recent years. Numerous tech startups, such as Aflorithmic in London, Respeecher in Ukraine, and Resemble.AI in Canada, are developing increasingly sophisticated AI voice technologies. These advancements have garnered attention, notably when the late Anthony Bourdain’s voice was synthesized for a documentary on his life. However, with the growing potential for malicious use, companies like Pindrop, a $900 million-valued security firm, claim to possess the capability to detect synthesized voices, thereby thwarting fraudulent activities.

It is crucial to recognize that if recordings of an individual’s voice are available online, either through social media, YouTube, or their employer’s website, their voice could unwittingly become embroiled in a secret battle for control without their knowledge.


The cloning attack, orchestrated with the aid of AI voice cloning technology, exemplifies the evolving landscape of cybercrime and the profound implications of malicious deep fakes. The U.A.E. investigation serves as a wake-up call, highlighting the urgent need for increased cybersecurity measures and heightened public awareness. As voice cloning becomes more accessible, individuals and organizations must remain vigilant, adopt robust authentication methods, and collaborate with global law enforcement agencies to mitigate the risks associated with this emerging threat.


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