Cross-Border Payment API Exchange Rate Locking Scam: Intercepting Large Corporate Remittances via Fraudulent Services

Who Gets Targeted

The primary victims are small and medium-sized cross-border e-commerce sellers, import/export companies, and their financial officers or procurement managers. These individuals often lack professional payment risk awareness and are eager to secure low exchange rates and fast settlements. Victims are typically financial and operational staff aged 25 to 50 who are easily swayed by claims of 'zero transaction fees,' 'instant settlement,' and 'no documentation required.' Driven by the lure of exchange rate arbitrage, they are easily misled by forged API documentation, fake registration numbers, and high-pressure sales tactics. Once funds are intercepted and transferred to offshore accounts, they become unrecoverable, leading to total loss. Individual cases have involved amounts exceeding 200 million RMB (media estimate, pending independent verification).

骗局怎么运作

• Fraudulent teams pose as 'cross-border payment technology service providers,' distributing forged API documentation on industry forums and WeChat groups. They claim to offer cross-border payment interfaces with real-time exchange rate locking and zero transaction fees, providing links to professional-looking websites and fake registration numbers to build trust.
• After seeing the promotional materials, the victim company's financial or operational lead contacts the scammers via private messaging apps. The scammers request company bank account details, SWIFT codes, and platform login credentials, promising that service activation requires only a simple contract, followed by a download link containing an 'API key'.
• Once the company integrates the API, the system displays a locked exchange rate based on high rates from six months prior and guarantees 24-hour settlement. In reality, the system intercepts instructions intended for the payee, redirects funds to offshore accounts controlled by the scammers, and deducts a portion under the guise of 'exchange rate differences' or 'service fees'.
• After funds are transferred to offshore accounts, scammers use the excuse of exchange rate fluctuations to demand additional 'exchange rate difference' or 'settlement adjustment fees.' They use high-pressure tactics, such as claiming payments are urgent or orders are about to expire, to force the company to transfer more funds, further increasing losses.
• If the victim company detects irregularities, they can only track the cross-border remittance through their bank. Because the funds involve multiple overseas accounts and are often quickly withdrawn, tracing is difficult, preventing timely freezing of assets and leading to large-scale capital chain collapses.
• The entire scam chain combines technical vulnerabilities, fraudulent contracts, and social engineering. Once the initial payment is made, subsequent demands for additional funds are often framed as official notices or regulatory requirements, making it harder for victims to detect the fraud.

红旗信号（看到这些快跑）

• 🚩 The provided API interface is not registered with the State Administration of Foreign Exchange (SAFE) or the People's Bank of China, and the official website lacks legitimate credentials.
• 🚩 The service requires the company to provide sensitive information such as bank account passwords or SWIFT verification codes for 'system integration'.
• 🚩 Promotional claims promise locked exchange rates, zero fees, and instant settlement without corresponding regulatory licenses or industry recognition.
• 🚩 Communication is restricted to private WeChat, Telegram, or non-corporate email addresses, with no formal business contracts or official company seals.
• 🚩 The fee structure is opaque, starting with high security deposits or 'rate locking fees,' followed by demands for additional payments due to 'rate fluctuations'.
• 🚩 The offered exchange rates are significantly better than the market rates for that date, with no source for real-time market data.
• 🚩 Contract documents lack regulatory registration numbers, Unified Social Credit Codes, or formal signatures/seals.

真实案例

• 2026-03-15
• 2026-07-28
• 2026-05-20
• In July 2026, China News Service cited the Procuratorate Daily regarding a new type of cross-border exchange fraud involving over 200 million RMB, where the criminal group used virtual currency to obscure the flow of cross-border funds. From September 2024 to July 2025, nine suspects were arrested or surrendered, and the procuratorate has initiated public prosecutions. (Source: https://www.chinanews.com.cn/fz/2026/07-28/10667741.shtml)
• In July 2026, the Procuratorate Daily reported a massive foreign exchange fraud case totaling 680 million RMB. The involved payment institutions and responsible parties were fined over 70 million RMB. Between July 2020 and August 2023, the group continuously forged cross-border e-commerce transactions to illegally purchase foreign exchange; the ringleader has been sentenced by the court. (Source: https://675h.com/p_3519.html)

Official Stance

• The People's Bank of China, the China Securities Regulatory Commission, and eight other departments, 2026-02-06, issued the 'Notice on Further Preventing and Disposing of Risks Related to Virtual Currency' (Source: https://www.csrc.gov.cn/csrc/c100028/c7614320/content.shtml)
• The Supreme People's Procuratorate and the State Administration of Foreign Exchange, 2023-12-27, released 'Typical Cases of Punishing Foreign Exchange-Related Illegal and Criminal Activities' (Source: https://www.safe.gov.cn/safe/2023/1227/23710.html)

How to Protect Yourself

• ✅ Before signing any cross-border payment service, verify if the provider is registered with the People's Bank of China or the State Administration of Foreign Exchange to ensure they hold a legitimate payment license.
• ✅ Never provide sensitive information such as bank account passwords or SWIFT codes. All settlement instructions must be initiated through the company's own banking system or a regulated payment platform.
• ✅ Use established third-party payment channels or bank API interfaces. Avoid integrating unknown, self-built APIs. Consult professional legal counsel to review technical documentation and contract terms when necessary.
• ✅ Be skeptical of claims regarding locked exchange rates or zero transaction fees. Check official channels for the daily market rate to confirm there are no abnormal discrepancies before proceeding.
• ✅ Establish internal approval processes. All large cross-border payments must be confirmed by finance, legal, and senior management, and complete records of communication and contracts must be maintained.
• ✅ If abnormal transactions are detected or additional payments are demanded, immediately request a payment stop from the bank, report the incident to local public security authorities, and notify foreign exchange regulators of the suspicious activity.