How to protect a high-value payment from fraud

How to protect a high-value payment from fraud

High-value deals attract a category of criminal that smaller transactions never see. The more money moves through a closing, the more professional the fraud operation targeting it tends to be — and the more devastating the consequences when it succeeds. The FBI’s 2025 Internet Crime Report logged $275.1 million in real estate fraud losses across 12,368 complaints. Those are the reported numbers. Many victims never report the crime out of embarrassment or because they believe recovery is impossible, and industry experts estimate actual losses could be 30 to 50 percent higher than reported figures. For the professionals who close deals — the brokers, agents, closing attorneys, escrow agents, and advisors who orchestrate how money moves — understanding the full attack surface is not optional. It is the job. This article maps every major fraud vector targeting high-value payments, explains the mechanics behind each one, and shows how to structure a deal so that the money lands where it is supposed to.

Why high-value deals are uniquely exposed

There is a straightforward reason why sophisticated fraud overwhelmingly targets large transactions rather than small ones: the return per attack is orders of magnitude higher. Luxury and high-value transactions are targeted because the per-incident return is orders of magnitude higher than residential fraud. A criminal running a wire fraud operation has roughly the same operational cost whether the target wire is $80,000 or $8 million. The economics favor concentrating effort on the biggest closings.

The real estate sector’s vulnerability stems from its inherent nature — high-value transactions and a complex web of communication among multiple parties. Transactions have moved increasingly online, and while efficient, this opens up avenues for fraudsters to intercept and manipulate communications, leading to unauthorized wire transfers.

The structural problem is not specific to real estate, though real estate makes the pattern visible. Any deal that requires multiple parties to coordinate by email, exchange wire instructions through informal channels, and move large sums on a compressed timeline is a target. Attackers often monitor communications to insert themselves at crucial moments, such as just before a wire transfer. They are patient. They study the deal. By the time they act, they often know more about the transaction timeline than some of the parties legitimately involved in it.

A survey found that 54 percent of real estate professionals had experienced at least one fraudulent seller impersonation attempt in recent months, with 77 percent noting an increase in such attempts over the same period. The attack surface is not narrowing. BEC attacks — the category that includes wire fraud targeting closings — have surged 1,760 percent since generative AI tools became widely available.

The anatomy of a wire fraud attack

Business email compromise: the master key

Business email compromise, or BEC, is the dominant fraud mechanism in high-value deals. BEC is a sophisticated form of cybercrime in which attackers impersonate legitimate business email accounts to deceive individuals and manipulate them into transferring funds or divulging sensitive information. In the real estate sector, where transactions involve large sums of money and complex coordination among multiple parties, BEC attacks represent a particularly serious threat.

The attack has a predictable structure. Cybercriminals first gather information about the target organization and its personnel via public sources, social media, and data breaches. They then craft convincing phishing emails to trick victims into divulging login credentials. Once access is obtained, attackers either use the real account if it is not protected by multi-factor authentication, or create lookalike email addresses.

In a typical scenario, cybercriminals identify a pending sale transaction and then build a profile of the parties — including the title company, real estate agents, and the buyer and seller. They hack into one or more parties’ email accounts and monitor email traffic for their opportunity to strike, usually sending false wire instructions that divert deposits, closing costs, and even mortgage payoff funds from their intended destination.

Wire fraud in real estate almost always begins with an email account compromise — either the buyer’s, the agent’s, the title company’s, or the attorney’s. Two-factor authentication on every email account used in a transaction is the single highest-return security measure available. A compromised email account without 2FA can be accessed silently for weeks without the account holder’s knowledge, providing the fraudster with complete transaction intelligence.

The closing attorney or title agent is often the most valuable target. Buyers and agents trust communications that appear to come from them — which means a compromised attorney email is the closest thing a fraudster can get to a master key for the entire transaction.

The urgency layer is deliberately applied. BEC attackers frequently use social engineering to build trust and urgency. They may pose as a buyer, seller, realtor, or broker requesting a change in payment instructions, and leverage fear, time pressure, or confidentiality to override normal verification processes. These tactics are particularly effective in real estate, where transactions frequently involve tight deadlines and high stakes.

The scammer provides wire instructions or specifies changes to a previous wire transfer request, such as a new account number, or a new requirement to pay via wire transfer. The scammer may create a false sense of urgency around the request, in hopes that the reader will bypass channels that might normally uncover a fraud. Acting in haste, the reader then sends money for the closing to the scammer’s account. The money is quickly transferred to an overseas bank before the scam can be uncovered and stopped.

What makes spoofing particularly dangerous is how invisible it can be. Sometimes, the fraud attempt comes from a legitimate email address. “Even then, identifying that an ‘m’ has been replaced with ‘rn’ can be hard to spot if you’re not looking for it.” The difference between jsmith@acmetitle.com and jsmith@acmetit1e.com is invisible on a mobile screen, and fraudsters know it.

The AI amplification problem

The threat has compounded significantly as AI tools have become accessible to anyone willing to use them for fraud. The primary new attack vectors include voice cloning: scammers use commercially available AI tools to clone the voice of a title officer, real estate attorney, or agent from as little as 10 seconds of audio — available from voicemails, YouTube videos, or prior calls. The cloned voice calls the buyer with updated wire transfer instructions. The voice is indistinguishable from the real person’s voice.

AI can now replicate the writing style, tone, and email signature of a real agent or title officer, making business email compromise attacks virtually undetectable without verification.

The stakes here are severe. In one documented case, a scammer used a deepfake voice to impersonate a real estate attorney in communications with a client. The unsuspecting buyer believed he was speaking with his legitimate attorney and wired a six-figure down payment — straight into the scammer’s account.

Police in Hong Kong alerted the public that a financier had been duped into wiring $25 million to scammers while confirming account information via live video conferencing. The financier learned after transferring the funds that deepfake technology had been used to impersonate his company’s chief financial officer and other staff members on the live video call. He said the parties on the call all sounded and looked like the colleagues he worked with.

The phone call, which used to be the verification backstop, is no longer automatically trustworthy. Professionals conducting high-value closings need to be aware that a voice on a call is not proof of identity if that call was not scheduled through a verified channel and the number was not drawn from a secure system of records established before the transaction began.

Fake proof: the documents that prove nothing

High-value deals — particularly commercial acquisitions, business sales, and large real estate purchases — often require the buyer to demonstrate financial capacity before the seller will commit. Proof of funds. Statements. Wire confirmations. In a normal deal, these are straightforward. In a fraudulent one, they are theater.

One prevalent scam involves forged or misrepresented SWIFT payment messages — notably the customer transfer message MT103 and bank transfer message MT202. Fraudsters may present victims with what appears to be official SWIFT documentation as “proof” that a large wire transfer has been executed. In reality, these documents are fabricated and not traceable in the genuine SWIFT network.

To convince victims that a payment is underway or completed, fraudsters frequently forge confirmation messages or bank statements. In SWIFT terminology, an MT910 is an “advice of credit” — essentially a notice to the beneficiary’s bank that funds are incoming. Scammers knowledgeable about these forms may present the victim with a phony MT910 notice showing that a credit of, say, €5,000,000 “has been effected” in their favor.

The practical danger in a deal context: a seller proceeds with conveyance, a party releases rights, a professional disburses commissions — all because a document appeared authentic. By the time anyone verifies directly with the originating bank, the window to recover is closed.

The standard protective measure is straightforward: if someone claims to have sent money but your own bank has no record, treat the situation as suspicious. Do not accept emailed PDFs or screenshots as proof; instead, ask your bank to trace the incoming payment by the supposed reference.

Proof of funds documentation deserves the same skepticism. Fraudulent counterparties may provide bank statements, letters of credit, or brokerage printouts that look institutional but have been fabricated. Fraudsters may use false registration documents to appear legitimate. For example, a scammer might create a fake version of a public report using the name and credentials of a legitimate registered professional, often someone with extensive experience and a spotless regulatory record. Bank letterheads are not authenticated by their appearance. The only reliable verification is direct contact with the issuing institution through contact information obtained independently — not from the document itself.

Complex deal structures with multiple stages and tranches also warrant scrutiny. Be alert if a relatively simple transaction is structured into multiple steps without clear reason — “tranches” of payments, preliminary “proof of ability” transfers, or conditional messages. Scammers often complicate a deal to confuse victims and hide the emptiness of the promise.

The reversal illusion: why “we’ll just recall it” is not a safety net

One of the most dangerous misconceptions in deal-making is the belief that a fraudulent wire transfer can be undone. This assumption leads professionals and their clients to treat verification as optional rather than mandatory.

Wire transfers are generally considered final and irrevocable once the receiving bank accepts the funds. In most cases, a fraudulent wire cannot be reversed — only recalled, and only within a narrow window of hours. Once funds are moved or withdrawn, recovery depends on law enforcement, not your bank.

Under UCC Article 4A, once a wire is accepted — meaning it has been credited to the beneficiary’s account — the payment is final. The receiving bank can only return funds voluntarily, and only if those funds haven’t already been moved. In real estate fraud cases, you are almost always dealing with a recall situation, not a reversal. That distinction matters because it determines your leverage and your timeline.

Wire transfer reversals are a race against time, and time typically isn’t on one’s side. Fraudulent actors know that time is of the essence and will often use banking holidays or weekends to slow the recovery process. They will also work quickly to withdraw or transfer funds immediately.

Once fraudsters move money to cryptocurrency or offshore accounts, SWIFT recalls become ineffective, which is why the first two hours are crucial.

Business Email Compromise accounted for $3.04 billion in total losses across all sectors, with the FBI’s Recovery Asset Team initiating 3,900 fraud incidents and freezing $679 million of $1.16 billion in attempted thefts. The recovery rate of 58 percent sounds high until you are on the wrong side of it: for every $100 wired to a fraudulent account, $42 is gone permanently.

There is a general lack of obligation for financial institutions to act when they suspect fraudulent activity. UCC Article 4A shields them from being held liable in fraudulent transactions if basic due diligence thresholds have been met.

The professional lesson is unambiguous: the entire architecture of protection needs to exist before the wire is initiated, not after.

Counterparty risk: when the fraud is the other party

Wire fraud and BEC attacks are external threats — criminals outside the deal injecting themselves into communications. But high-value deals also carry counterparty risk, where one of the parties to the transaction itself is the problem.

This takes several forms.

Fake buyer fraud is common in commercial and luxury real estate. A counterparty presents fabricated proof of funds, signs purchase agreements, delays closing while the target property is taken off market, and eventually either disappears or uses the deal structure to extract information, advance fee payments, or due diligence disclosures from the other side. The cost to the victim is not always a misdirected wire — sometimes it is the professional fees, carrying costs, and opportunity cost of a deal that was never real.

Seller impersonation has risen sharply. The continued rise of seller impersonation is one of the most significant current fraud trends, particularly in vacant land transactions where ownership verification is harder to execute. A fraudster researches a property with no mortgage — often vacant land or a free-and-clear residence owned by someone who is elderly, traveling, or otherwise unlikely to notice quickly — obtains falsified identification, and presents as the owner to sell property they do not own. The professional in the middle who has not independently verified identity against government records, not just the documents presented to them, becomes an unwitting participant.

Commission diversion targets the professionals directly rather than the deal itself. In commercial brokerage, where commission splits may involve multiple parties, co-brokers, and referral arrangements, a fraudulent actor who has gained access to email communications can insert modified wire instructions for the commission disbursement — directing the broker’s fee to the criminal’s account rather than the broker’s.

Fraud attempts are targeting the day-to-day mechanics of property management and transactions: vendor invoices, wire transfers, and payments of all kinds. The commission wire is no different from the purchase wire in the eyes of a fraudster. Both are large transfers. Both involve instructions that are frequently communicated by email. Both are targeted.

The verification discipline: what professional protection actually looks like

Given that the attack surface is broad and the consequences of failure are severe, protection in high-value deals requires systematic protocols, not individual vigilance alone. Awareness matters, but awareness alone is not a system. The following disciplines, applied consistently, address the core vulnerabilities.

Never verify a wire instruction through the same channel it arrived in

This is the single most important procedural rule. An email is not verified by replying to the email. A phone number embedded in an email is not a safe callback number — it may route to the criminal. The most effective verification step is conducting a callback. This involves using a phone number from a trusted system of records and calling to verify payment details or instructions. Never use a number sent in an email, as it could be the criminal’s.

The trusted system of records must be established at the beginning of the engagement — before the deal is in motion and before anyone has a reason to alter instructions. Phone numbers should be confirmed in person or through an independently verified source at the outset. Everything received after that point — every instruction, every change, every confirmation — should be validated against that pre-established record, not against the document or email that delivered the instruction.

Treat any change to wire instructions as a presumptive fraud attempt

Changes to wire instructions mid-transaction are a defining red flag. A change in wire instructions is rare for any party in a real estate transaction. Legitimate parties do not typically change banking information after a transaction has begun. When a request to change instructions arrives — regardless of how authoritative the email looks, regardless of who appears to have sent it — it should trigger an immediate out-of-band verification call. Not an email reply. A phone call to a number already in your verified contact file.

Emails that demand urgent action, particularly those sent at the end of the month or the beginning of bank holidays, warrant particular suspicion. Fraudsters time their attacks to windows where the target is most pressured and least likely to slow down to verify.

Secure the email environment itself

Verification protocols address the transaction layer. But the upstream vulnerability — email account compromise — requires its own defenses.

Before sharing an email address with any transaction party, use a dedicated email address for the transaction that is not your primary business or personal email. Enable two-factor authentication on that email account. Never send financial information — account numbers, wire amounts, closing dates — over email. Use a secure portal or a direct phone call. Treat any email requesting a change to previously established wire instructions as fraudulent until independently verified by phone.

Use secure communication channels, like encrypted email or a transaction management platform, whenever sharing sensitive information. The information that makes a BEC attack possible — the deal timeline, the parties involved, the approximate dollar amount — should never travel in plaintext email if it can be avoided.

Verify identity, not just documents

Documents are increasingly easy to fabricate. Cybercriminals are now using AI-generated emails, voice cloning, deepfake technology, and sophisticated impersonation tactics to create scams that are increasingly difficult to detect. The professional’s job is to verify the person behind the document, not merely the document itself.

For high-value transactions, this means identity verification that goes beyond what is presented. It means live video calls where identity can be challenged in ways a deepfake cannot easily handle — asking a counterparty to write a specific word on a piece of paper and hold it to the camera, or asking an unexpected question that requires genuine knowledge of the transaction history. One title agent asked a video call participant to raise her hand. She didn’t move. It was a deepfake. Simple, low-tech challenges can expose high-tech fraud.

Audit the disbursement list before closing

Every professional who touches disbursements — the closing attorney, the title agent, the escrow officer — should have a hardcopy or secure-portal version of all recipient wire details that was established and confirmed before the day of closing, not delivered or modified on closing day. Any discrepancy between what is in the secure record and what arrives the morning of closing should halt the transaction until it is resolved out-of-band.

Wire instruction defects were identified in a meaningful percentage of transactions reviewed for fraud risk — alongside licensing irregularities such as credential mismatches and expired licenses. Fraud and procedural error often look identical until you investigate.

The structural solution: removing the email-instruction problem from disbursements

The deepest fix to high-value payment fraud is not behavioral — it is structural. The reason wire fraud works is that payment instructions travel through channels that can be compromised. Email can be hacked. Documents can be fabricated. Phone calls can be cloned. As long as the routing of funds depends on instructions delivered through those channels, there is an attack surface.

Blockchain transactions are cryptographically signed and recorded in a tamper-evident ledger. Once confirmed, a transaction cannot be altered, which eliminates the need to reconcile multiple internal ledgers and reduces the risk of fraud. The payment either exists or it doesn’t, visible to everyone with access to the network. When a blockchain transaction settles, there are no reversals, chargebacks, or multiday clearing windows.

In onchain systems, once a transaction is confirmed, it’s verifiable by anyone, tamper-resistant by design, and settled with finality. That’s why high-value assets and important records tend to live onchain.

The immutability of blockchain records ensures that once a transaction is added to the ledger, it cannot be altered or deleted. This creates a tamper-proof system that prevents fraudulent changes and disputes. Unlike traditional payment systems, where records can be manipulated or transactions contested, blockchain offers a permanent and reliable record.

This is where Shaka changes the security architecture of a closing in a fundamental way. When a professional builds a deal on Shaka, the recipient wallets and the split percentages are embedded in the payment link at the time it is created — before the deal closes, before closing day pressure sets in, before any fraudster has an opportunity to intercept instructions. The routing is not an instruction that travels through email. It is encoded in the transaction itself. There is no “new wire instructions” email to send, because there are no wire instructions to intercept. Each wallet receives its allocation directly, in one transaction, with settlement that is final.

The entire category of attack that depends on diverting funds through falsified wire instructions — BEC, spoofed emails, cloned voices delivering new routing numbers — simply does not have a target to hit when the routing is already locked into the onchain settlement layer before funds move. The professional closes the deal; Shaka handles how the money lands.

When fraud happens: the response window

Even with strong protocols, fraud can succeed — especially when AI-generated impersonation is sophisticated enough to fool a verification call. Knowing what to do in the first hours after discovering a fraudulent transfer is the difference between partial recovery and total loss.

A SWIFT recall is an urgent request sent through the SWIFT network to reverse or freeze a wire transfer. When you contact your bank’s fraud department immediately after discovering fraud, they send a recall message to the receiving bank requesting them to freeze and return the funds. However, receiving banks aren’t legally obligated to comply. Success depends on timing — if funds haven’t been withdrawn or converted, the bank may honor the request.

When fraud is identified and reported quickly, there are instances where funds can be recovered — but delays significantly reduce that likelihood.

Contact your bank’s fraud department immediately. Do not send additional wires while the situation is being investigated. Report to the FBI’s Internet Crime Complaint Center at IC3.gov. Notify your insurance carrier and legal counsel simultaneously — the documentation and timeline that begin in the first hour will determine the viability of any insurance claim or legal recovery. Alert every party to the transaction so that secondary fraud attempts against other parties can be recognized and stopped.

Incident response can take weeks. The duration of fraud investigations can range between 30 to 90 days, depending on the complexity of the case and the level of collaboration with different parties. The investigation is a long process. The window to recover the money is not. Those are two different timelines, and they run simultaneously.

Building a fraud-resistant practice

The professionals who close high-value deals without losing money to fraud are not lucky — they are structured. The discipline is not complicated, but it has to be consistent. A protocol that is followed 90 percent of the time fails when a fraudster gets the other 10 percent.

“Security has to be part of the deliverable of the transaction.” That framing is exactly right. Protecting the payment is not a separate administrative task that runs alongside the deal. It is part of what the professional delivers to their client. In high-value work, a closing attorney or title agent who cannot articulate their fraud prevention protocols — who those protocols exist to protect, what channel wire instructions will travel through, how identity will be confirmed — is not providing the full service that a $5 million closing demands.

Communicating early about how clients’ funds are being protected matters. Sixty-one percent of consumers say they feel anxious about their funds during transactions: “Tell your clients how you are protecting them.”

The professional who establishes verified contact information at the outset, communicates clearly about how instructions will and will not be delivered, refuses to accept last-minute changes without out-of-band verification, and structures disbursements so that routing cannot be altered through a compromised email chain — that professional is not just protecting their clients. They are protecting their own reputation, their license, and the trust that makes repeat business possible.

Nearly 44 percent of mortgage transactions in a recent quarter were flagged for significant wire and title fraud risks — an increasing problem in the real estate finance industry. The findings underscore persistent vulnerabilities in closing and settlement workflows amid rising regulatory scrutiny and a proliferation of cyber threats.

Fraud at this scale, this frequency, and this level of technical sophistication is not going away. The attack surface will expand as AI tools become cheaper and more powerful, and as deal data becomes more accessible through public records and compromised databases. The professionals who survive it — and continue to attract high-value clients — will be the ones who built security into their process before they ever needed it.

The money in a high-value deal is not yours to lose. Your clients trust you to get it where it belongs, intact, and with certainty. Every fraud prevention measure you embed into your practice — from verified contact protocols to onchain disbursement routing — is a direct expression of how seriously you take that responsibility.