The recent verdict in a divorce case in Shenzhen has caused a stir in the crypto community.

A couple went to court over 1,500 Bitcoins (worth nearly 1 billion yuan), with the woman holding a thick stack of transaction records as "solid evidence," but the man casually opened his cold wallet, and with a click of the mouse, transferred all assets out.
Ultimately, the court's ruling served as a crucial lesson for everyone in the crypto world: whoever holds the private key owns the assets, and so-called transaction records are no match for control rights.
Having worked in the cryptocurrency field for many years, I am well aware of how deadly the vulnerabilities exposed by this case are.
Three truths that every coin holder should remember.
First, the rules of blockchain have always been hardcore: control equals ownership. The Shenzhen case is the best benchmark—don't blindly believe that "transaction records can reclaim coins." In reality, many people hold coins jointly or invest as couples, with ambiguous private key ownership, which may seem considerate but actually sets a trap for future disputes.
Second, private keys are the lifeline of assets; never store large amounts of assets on exchanges. Statistics show that 67% of coin thefts originate from weak passwords, and private keys cannot be recovered if lost. Once lost, assets will be completely "evaporated."
Third, there is no absolute anonymity on the chain; wallet addresses can be traced for all holdings and transfer records. The man's transfer traces are clear, but the woman has no private key and can do nothing about it. Practical advice: store assets across three self-managed wallets, keep only short-term trading limits on exchanges; use random strings + special symbols for passwords, and store backups offline; keep all proof of off-chain transactions.
In the crypto world, candlestick charts and derivatives are just side roads—keeping your private key tight is the fundamental way to safeguard your assets.