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BTC 伦敦男子因20万英镑加密货币SIM卡劫持诈骗入狱
25岁的伦敦居民阿杰·辛金（Ajay Shinjin）因协助策划一起涉及从四名受害者处窃取近20万英镑（约合26.4万美元）加密货币的阴谋，被判处两年半监禁。伦敦市警察局于周四确认了这一判决结果，标志着这起始于2021年、最初通过发现电信公司BT系统上未经授权活动而启动的调查正式结束。
SIM卡劫持欺诈方案的运作方式
该犯罪活动利用了一种名为“SIM卡劫持”（SIM swap fraud）的技术。攻击者通过将受害者的电话号码转移到他们持有的SIM卡上，从而获得对该号码的控制权。一旦控制了号码，犯罪分子就能拦截来自银行和加密货币交易所的一次性验证码，进而非法访问账户。
BT公司于2021年11月初在其网络上检测到可疑活动，并报告称客户的电话号码被秘密转移到了由诈骗者操作的设备上。通过分析支持eSIM功能的手机并追踪设备标识符，调查人员锁定了一组嫌疑人，最终将辛金与其中四台设备联系起来。
专业术语：SIM卡劫持欺诈，指罪犯将受害者的电话号码重新分配给新的SIM卡，使其能够拦截通过短信发送的在线账户安全验证码。
加密货币盗窃细节
Between November 2 and November 7, 2021, four victims lost large amounts of cryptocurrency assets due to SIM card hijacking attacks. Here are the details of the specific case:
- Victim One: About £ 40,000 (approximately US$52,840) was lost on November 2, of which £ 27,000 was traced to Sinkin's crypto account.
- Victim 2: About 17,000 pounds (approximately US$22,457) were stolen between November 5 and 7, and all the stolen funds were later found in Singin's wallet.
- Victim three: Loss of approximately £ 8,000 (approximately US$10,568) from Coinbase account on November 3. The investigation found that Xin Jin facilitated the transfer before the funds were transferred.
- Victim Four: This was the single largest theft, and the victim's cryptocurrency was emptied of approximately £ 130,000 (approximately US$171,730) in two days. Law enforcement officials said Sinkin played a key driving role in the theft.
Investigators determined that Singin retained more than £ 44,000 (approximately US$58,124) of stolen assets. He used the stolen money for luxury vacations in Dubai, high-end accommodation in Canary Wharf and gilded tooth decorations (Grills).
Police investigation and legal consequences
Sinkin, who lives on Marsh Wall, Canary Wharf, pleaded guilty on September 28, pleading guilty to false statement, conspiracy to defraud and transfer of criminal property. In the ruling at the Inner London Crown Court, the judge issued the sentence, taking into account his two previous arrests-first at his apartment at Canary Wharf in 2021 and second at Heathrow Airport after returning from Dubai in October 2023. During both police inquiries, Xin Jin refused to answer questions.
Detective Constable Simon Ardeman of the City of London Police commented on the impact of the crime, pointing out that SIM card hijacking is a "complex and increasingly worrying form of crime and the case demonstrates its devastating consequences for victims." He emphasized that successful prosecutions showed that technology-assisted fraud can be traced and prosecuted with determination.
SIM card hijacking fraud represents a growing and complex threat that causes significant harm to victims. The case highlights the fact that even in highly technical crimes, careful investigation and cooperation can lead to successful prosecutions.
This sentence has been more than four years since the original theft occurred. Several suspects have also been charged in similar incidents related to the UK. In May this year, ten people in England faced charges for a telephone impersonation scam that resulted in at least one person losing £ 300,000 in cryptocurrency after the scammers disguised as law enforcement officers or cryptocurrency company employees to obtain wallet mnemonics.
International response and similar cases
International agencies have also responded to similar criminal acts. The FBI and HSI supported Poland's cybercrime unit, which detained four suspects on June 25. Authorities accused the gang of carrying out a SIM card hijacking attack to empty funds from cryptocurrency exchange accounts.
Cross-border verification and law enforcement cooperation is crucial to combating digital asset fraud.
