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On May 12, the Economic Police Department of the Thai Nguyen Provincial Police announced that it had identified and arrested four individuals, including taxi drivers, for using computer networks, telecommunications networks, and electronic devices to commit asset theft from Green and Smart Mobility GSM Joint Stock Company (GSM), a unit of VinGroup. The investigating authorities issued a decision to prosecute the case and indict the suspects, and issued warrants for temporary detention under Article 290, Clause 1 of the Penal Code for the offense of using computers, telecommunications networks, and electronic devices to commit asset theft.
Authorities said that, through local situational awareness and online monitoring, the Economic Police Department detected from late 2025 that a market had emerged in Thai Nguyen for electronic devices capable of obstructing or disabling surveillance signals used by taxi companies.
By the end of April 2026, GSM reported that during passenger-transport operations, company staff (drivers) used electronic devices capable of interfering with vehicle electronics and disabling the infrared sensor system known as the “Eye of God” to defraud the company.
The “Eye of God” is an infrared sensor installed on VinFast electric cars that detects whether a passenger sits in the front passenger seat or the rear seats. GSM stated that it has about 800 taxis operating in Thai Nguyen. It said that illegal interference with the vehicle’s operation could prevent the infrared sensor from recognizing passengers, enabling fraudulent payments and harming the company’s business.
Police characterized the scheme as a new tactic, carried out in a closed and sophisticated manner under the direction of the provincial police director.
At around 19:50 on April 28, 2026, in Thom Hamlet, Phu Bình commune, a task force from the Economic Police Department detected three GSM taxi drivers—Trinh Ngoc Chien (born 1992, resident of Dai Phuc commune), Dinh Quy Duong (born 1996, resident of Song Cong ward), and Nguyen Trung Thanh (born 1990, resident of Pho Yen ward)—carrying passengers while using an electronic “signal jamming” device to defraud GSM.
Investigators also identified Ma Khanh Hung (born 2000, resident of Trung Hoi) as the seller of the jamming devices. The seized items included eight electronic devices capable of unlawfully suppressing the passenger-identification function on Green Taxi SM vehicles, along with related evidence.
At the police office, Hung, Chiến, Duong, and Thanh confessed their crimes.
According to investigators, around April 2025 Hung was contracted as a taxi driver for GSM in Thai Nguyen. During his work there, he sought to buy such devices online, which GSM discovered, leading to his dismissal.
After seeing demand, Hung began selling and supplying the devices to taxi drivers for profit. From May 2025 to April 2026, Hung sold the devices to multiple buyers, including Chiến, Duong, and Thanh, at prices ranging from 500,000 to 900,000 VND per device.
Police said the suspects then used the devices multiple times to steal service payments from GSM.
On April 30, 2026, the Thai Nguyen Provincial Police’s Investigative Agency issued a decision to prosecute the case, prosecute the suspects, and issue arrest warrants for Ma Khanh Hung, Trinh Ngoc Chien, Dinh Quy Duong, and Nguyen Trung Thanh for “Using computers, telecommunications networks, and electronic devices to commit asset theft” under Clause 1, Article 290 of the Penal Code.
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