Singapore has sentenced Zhang Xinghua to two years in prison after he pleaded guilty to conspiring to misuse a computer system and dealing with criminal proceeds tied to the $6.9 million theft from the SafeX exchange. The ruling turns a major exchange breach into a criminal conviction that also exposes how insider access and weak custodial controls can combine into a costly failure.
Prosecutors said the theft took place between June and August 2025 and involved three former employees of King Coder, a vendor that had worked on platforms for SafeX operator DTL. The case centered on coordinated actions by former vendor staff rather than an external smash-and-grab attack, a detail that sharpens the focus on internal access controls and third-party oversight.
How the Theft and Laundering Operation Unfolded
According to the case, Chen Chong Xin accessed SafeX’s vaults without authorization on three separate occasions and transferred more than $6.9 million to multiple wallets. Authorities described a pattern of repeated unauthorized access rather than a single isolated intrusion. Chen remains at large, while proceedings against another co-accused, Dai Yong, are still pending.
Zhang’s role was tied to laundering the stolen proceeds rather than carrying out the original theft itself. Court documents said he routed more than $1.6 million through Tornado Cash in two transactions during July and August 2025, linking him directly to the effort to obscure the movement of funds after the breach.
Singaporean authorities were able to freeze or seize about $2.1 million in related crypto, though much of the money remains out of reach. Roughly $4.8 million was still unrecoverable in overseas private wallets or with service providers, underscoring how quickly stolen digital assets can move beyond immediate enforcement reach. During the investigation, Zhang also returned about $95,000 in Bitcoin through his wife’s Binance account.
Why the Case Matters Beyond the Courtroom
The conviction has reinforced concerns that insider risk remains one of the hardest threats for exchanges to contain. Security analysts and market commentators pointed to the case as a reminder that custodial weakness and privileged access failures can trigger both financial loss and immediate market stress. Reports tied the breach to short-term sell-offs, higher volatility, and heavier trading in SafeX token pairs as participants adjusted risk.
At the same time, the outcome may strengthen confidence in Singapore’s enforcement posture. The ruling signals that crypto-related theft and laundering cases are being pursued aggressively, even when stolen funds are routed through mixers and offshore wallets. That could support the jurisdiction’s reputation with institutional participants even as it raises expectations for exchanges and custodians operating there.
The broader consequence is likely to be more scrutiny on vendor controls, internal audits, and real-time security monitoring across the region. Exchanges and treasury teams now have another clear example of why custody risk cannot be separated from governance and access management. Liquidity on SafeX-linked markets, recovery efforts tied to known addresses, and any follow-up regulatory response will remain important signals for traders and risk managers watching the case.