The script repeats itself among the victims who come to the laboratory. It starts small: a "paid tasks" group or an investment platform recommended by an acquaintance. The person puts in five hundred reais and gets fifty back, fast and clean, to build trust. In the next round, they ask for a thousand. When the person tries to withdraw, they discover the new rule: to cash out, they must deposit another six thousand. By then, the money has already become cryptocurrency and slipped beyond the bank's reach. In another variation, the victim invests hundreds of thousands of reais in a platform "headquartered abroad", which one day simply blocks withdrawals and disappears.
In both scenarios, the instinctive reaction is the same: "it was crypto, the money is untraceable". And that is the first idea the forensic examination knocks down. The public blockchains that dominate these scams are no black box; it is the opposite: a public ledger, where every transaction is recorded forever, visible to anyone. What criminals exploit is not the system's anonymity, but its pseudonymity: the addresses carry no name on their forehead. Linking the address to a person is exactly the examination's job.
How the tracing works
The starting point is the record of the victim's transaction: the transaction identifier (TXID) of the transfer, the destination address, the receipt from the exchange or the wallet. From there, the examination follows the flow through the chain of blocks: which addresses the value passed through, how it was split and regrouped, which other flows it mingled with. Clustering techniques make it possible to recognize sets of addresses under the control of a single operator, and the map takes shape: on one side, the injured source; on the other, the funnel that concentrates the funds of dozens of victims.
The destination that matters has a name: exchange. Sooner or later, whoever steals crypto needs to convert it into usable money, and serious exchanges operate with customer registration and identification. When the traced flow ends at one of them, the legal door opens: a court order to identify the account holder and, with the right speed, freeze the assets before they leave. That is the race that defines these cases: the trail is permanent, but the balance is fleeting.
"The blockchain never forgets a transaction. The question is not whether the money's path exists; it is whether someone will walk it with method before the balance becomes a withdrawal."
What the expert report delivers to the case
The product of the tracing is not a tangle of codes: it is a expert report that narrates the money's path in language the court can follow, with a flow diagram, documented addresses, dates and amounts for each hop, and the technical grounds for every link established. It is this document that supports the freezing request, sustains the criminal complaint, and grounds the action for damages. Without it, the request reaches the court in generic form, and a generic request on a technical matter rarely prospers.
Two questions guide the judicial reading of this work: does the traced amount correspond to what the victim sent, minus network fees? And do the intermediate hops have a better explanation than concealment? When both answers close, the report's diagram becomes the map of the decision: each arrow corresponds to a public transaction, verifiable by either party on the blockchain itself.
The limits nobody advertises
Forensic honesty requires stating what the tracing cannot reach. Mixing services shuffle flows from thousands of origins to break the trail, and the analysis cannot always reconnect it. Direct peer-to-peer deals, without an intermediary, convert crypto into cash outside any registry. And the value resting in a cold wallet, under the criminal's exclusive key, can be seen on the public ledger, untouchable like an armored display case: you know where it is, you cannot seize it. So the correct expectation is not "always recover", but "maximize the chance": it grows with the speed of the engagement and dies with delay.
The other side of the trace: crypto hidden in the estate
The same method that pursues the scammer serves the asset dispute. In divorces, probate proceedings, and enforcement actions, the suspicion repeats: part of the estate supposedly became cryptocurrency to escape division or attachment. The examination looks for the traces at the other end: bank statements with transfers to exchanges, apps and wallets on the examined devices, transaction confirmation emails, and from them reconstructs positions and movements. Established exchanges respond to court orders like any institution, reporting the holder's balances and history. The pattern of the concealer tends to be recognizable: significant purchases in the period close to the litigation, withdrawals to self-custody wallets, and the sudden "loss" of the keys. The report does not return the asset by itself, but it turns the generic suspicion into a well-grounded request for disclosure, freezing, and division, with numbers, dates, and destinations.
What to gather before seeking help
- Receipts for each transfer: TXID, destination address, amount, date, and time;
- Screenshots and conversations with the scheme's operators, without deleting the originals on the device;
- Platform data: website, app, contracts, screens showing balance and blocked withdrawals;
- Bank records of the crypto purchase (transfer to the exchange or to an intermediary);
- The police report, which formalizes the case and enables the next measures.
The cryptocurrency scam was designed to produce the feeling of a dead end, and it is exactly that feeling that makes victims give up too early. The technical reality is less bleak: the money left a public and permanent trail, and a relevant share of cases ends at doors with a name and taxpayer ID on the other side. Between the victim and that door lies a work of method, and it begins, as always, with preserving everything and acting fast.
And if the case involves a company, the lesson counts double: treasuries that accept crypto need a custody and traceability policy before the first incident, not after it.
