Man Jailed 5 Years for 50,000 Scam Calls in 50 Minutes
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- Chong Wei Hao, a 42-year-old Malaysian electrician, was sentenced on April 2 to 5 years and 3 months in jail and fined S$895 for installing VoIP GSM Gateway devices that transmitted over 50,000 automated scam calls in a single 50-minute window.
- Forensic analysis linked the nine devices in the Chai Chee apartment to roughly 18,000 phone numbers, 40 of which surfaced in 42 police reports — while 131 unique numbers traced to the unit featured in 75 total scam reports overall.
- Victims lost more than S$1.6 million (US$1.2 million) across the 12-day operation, including three cases of fake Monetary Authority of Singapore investigator scams that alone accounted for the S$1.6 million, none of which has been recovered.
- The syndicate used a SIM pool purportedly located in Malaysia to select SIM cards and mask call origins as local Singapore numbers, with masterminds believed to be Taiwanese operating remotely from Taiwan.
- Chong was recruited via Telegram by a user called 'NASA,' paid USDT 700 in crypto as an advance, and signed a six-month S$18,000 tenancy in Chai Chee after lying to the landlord that he was a dim sum shop manager housing female employees.
- District Judge Eddy Tham called the operation's reach 'staggering' and 'sophisticated and elaborate,' noting it let masterminds operate safely from out of jurisdiction; Chong could have faced up to 10 years under Singapore's cheating-conspiracy law.
- Police raided the Chai Chee unit on April 17, 2025, recovering nine devices, CCTV cameras, a modem, and a router; Chong was arrested in Johor Bahru on June 28, 2025, and handed to Singapore police two days later.
Why it matters: The Chai Chee operation shows how a single rented apartment equipped with nine devices and an offshore SIM pool can generate 50,000 scam calls in under an hour, exploiting local caller-ID trust to defraud Singaporeans of S$1.6 million — including a 79-year-old retiree — while the actual masterminds remain safely out of jurisdiction in Taiwan.
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