Former Singapore Navy Captain Sentenced to Six Years and Ten Months for Stealing 1.7 Million USDT
Teo Rong Xuan (35), a former captain of the Singapore Navy's diving unit, broke into a friend's apartment, captured the seed phrase of a cold wallet, and stole 1.7 million USDT (approximately 2.3 million SGD).
Teo used the stolen funds to purchase luxury watches, gamble, repay his mortgage, and replenish his CPF account, having previously suffered significant losses due to the collapse of the FTX exchange; he had co-operated with the victim in running an NFT trading platform.
The security vulnerabilities in crypto custody and cold wallets were exploited through personal trust relationships, leading to direct asset losses for the victim, while financial institutions and exchanges benefited from enhanced KYC and multi-factor authentication, putting pressure on high-net-worth crypto holders to increase self-custody vigilance.
Source: Public Information
ABAB AI Insight
Teo Rong Xuan, an active captain in Singapore's armed forces elite naval unit, committed the crime in 2023 and pleaded guilty in October 2025, having left the military in 2023. His actions expose the personal financial risks faced by military personnel in the crypto space, as he previously co-operated with the victim in operating an NFT platform under Upstairs Research Pte Ltd.
In terms of capital flow, Teo physically invaded to obtain the seed phrase and transferred 1.7 million USDT to his own wallet to repay personal debts from the FTX collapse, engage in luxury spending, and gamble, reflecting an extreme path of liquidity redistribution through crime after high-leverage speculative failures in crypto assets.
Similar to multiple insider or trust-chain-related crypto theft cases from 2022-2023 (such as the aftermath of the Ronin Network internal attack), Singapore's crypto ecosystem is transitioning from early wild growth to stricter custody and regulation, with military background personnel's involvement highlighting cross-domain trust risks.
Structural judgment: Essentially, this belongs to the reconstruction of the industry chain. Personal trust and the physical security of cold wallets have been breached, pushing the crypto industry from "trusted acquaintances custody" to institutional-level multi-signature, insurance, and regulated custody, driven by high-loss cases accelerating technological replacement and the concentration of pricing power towards professional custody service providers.
ABAB News · Cognitive Law
Trust is the biggest security vulnerability, and the seed phrase is the ultimate backdoor.
When driven by debt, moral lines are easier to breach than cold wallets.
Military elites sell discipline, speculative failures sell trust, and ultimately the market sells regulation.