2.4 · CEO fraud & wire transfer fraud

Level 2 · Recognizing attacks

2.4CEO fraud & wire transfer fraud

Goal: Apply dual approval and the known-number callback against wire transfer fraud.
Estimated time: 12 min · self-paced reading · If you only have 5 min: read “The essentials in 30s” + the diagram.

The essentials in 30 seconds

  • Urgency + secrecy + transfer = FOVI until proven otherwise — the trio is not discussed, it is verified.
  • “Tell no one” = absolute signal: isolating the victim is fraud's precondition — imposed secrecy is the alarm.
  • Dual approval + known-number callback: any unusual transfer or bank-details change is verified via another channel — checking is not disobeying.

Threaded mini-case — Karim and the fake “CEO” email

Karim receives an email seemingly from the CEO: exceptional, confidential transfer of 25 000 € to execute urgently, “tell no one”. The urgency + secrecy + transfer trio triggers his FOVI reflex: instead of obeying the imposed secrecy, he applies the procedure — calling the CEO back via the internal directory on the already-known number. The CEO never asked for anything. Karim reports the attempt: verification via another channel just saved the company.

Simplified teaching model: this scenario illustrates the signals and the defense, without detailing any attack technique.

1. The Fake Wire Transfer Order

CEO fraud (FOVI — Fake Wire Transfer Order) targets accounting and finance departments: an urgent call or email seemingly from the CEO or CFO, requesting an exceptional, confidential transfer. Most frequent variant: fake-supplier fraud (bank-details change: subsequent payments go to the fraudster). With AI, these frauds now also include voice and video deepfakes.

2. Red flags

Urgency + secrecy + transfer = FOVI until proven otherwise. Imposed secrecy (“tell no one”) is the absolute signal: isolating the victim is fraud's precondition. And even the executive's real address proves nothing: compromised account or spoofed address — it is the nature of the request triggering verification, not the address.

3. Defenses

Dual approval: any unusual transfer or bank-details (RIB) change requires a second approval via a different channel. The known-number callback: check with the requester via the ALREADY-known number (internal directory) — never the one given in the request. No real executive will ever blame a verification — fraudsters will.

Common misinterpretation: “The email comes from the CEO's real address and stresses secrecy, so I must obey fast and silently.” No, it is exactly the opposite: the address proves nothing (compromised account or spoofing), and imposed secrecy is the absolute alarm signal. The procedure — dual approval and known-number callback — protects everyone, including the executive: checking is not defiance, it is the standard.
Resisting FOVI Verify before paying Spot Urgent + confidential+ transferDual approval Secondchannel mandatoryCall back The HISTORICnumber
Verify before paying
Text version of the diagram (SEO / screen readers / translation): 1) Karim SPOTS the trio: urgency + secrecy + 25 000 € transfer = FOVI until proven otherwise. 2) He applies DUAL APPROVAL: no unusual transfer alone, mandatory second channel. 3) He CALLS BACK the HISTORIC number (internal directory), never the request's. Lesson: imposed secrecy is the alarm, and no real executive blames a verification.

🔎 Concrete example — 🔎 Concrete example — Testing your payment circuit

Karim's test, before fraud strikes (teaching model):

A “CEO” requests an urgent confidential transfer of 25 000 €.
Supplier bank-details change → callback on the HISTORIC number?
Rule: unusual payment = verbal check on the known number.

Takeaway: the payment circuit scrutinized, dual approval anchored.

Lesson: verify even (especially) when the message forbids it.

Section vocabulary

CEO fraud (FOVI)
Fake Wire Transfer Order: a fraudster impersonates an executive and demands an urgent, confidential transfer.

Simple example: The fake “CEO” email Karim received: urgent, confidential 25 000 €.

What it is not: a planned, documented transfer approved under the usual procedure.

Reflex: urgency + secrecy + transfer trio = immediate verbal check.

Fake-supplier fraud
The “supplier” reports a bank-details change: subsequent payments go to the fraudster — the most frequent variant.

Simple example: An email announcing new bank details (RIB) to use “from the next payment”.

What it is not: bank details verified by callback on the supplier's historic number.

Reflex: any bank-details change = callback on the already-known number.

Imposed secrecy
“Tell no one”: the absolute alarm signal — isolating the victim is fraud's precondition.

Simple example: The fake CEO's gag order, which Karim disobeys to check.

What it is not: a real procedure precisely providing for a second approval.

Reflex: imposed secrecy = tell someone (contact, hierarchy) at once.

Dual approval
The organizational defense: any unusual transfer or bank-details (RIB) change requires a second approval via a different channel.

Simple example: Karim has the 25 000 € transfer approved via a second channel first.

What it is not: executing an urgent transfer alone “not to bother anyone”.

Reflex: never an unusual payment without second approval.

Known-number callback
Check with the requester via the ALREADY-known number (internal directory) — never the one given in the request.

Simple example: Karim calls the CEO on the directory number: no real request.

What it is not: calling back the number given in the suspicious message itself.

Reflex: internal directory and historic numbers always at hand.

In practice — In practice — Testing your payment circuit against FOVI

  1. Run the scenario: a “CEO” email asks you for an urgent, confidential 25 000 € transfer. Who, in your organization, could actually execute it alone?
  2. Check the supplier bank-details change procedure: does it require a callback on the supplier's historic number? If not, propose it.
  3. Formalize your personal reflex: any unusual payment request = verbal check on the known number, even (especially) when the message forbids it.
  4. Share the scenario with whoever handles payments — this 5-minute conversation is the company's best defense.
Your payment circuit scrutinized — and the dual-approval rule anchored.

Ready-to-say script — opposing procedure to the fake CEO (20 s)

“Dear Director, I have received your urgent, confidential request. Our procedure requires dual approval for any unusual transfer: I'll call you back in a moment on the directory number to confirm together, and have it approved via a second channel.”

Say (or write) then really call back on the known number; never execute alone, even under pressure.

Copy-paste template — unusual-transfer check

REQUEST RECEIVED ON: _______________ / AMOUNT: _______________
FOVI TRIO (urgency + secrecy + transfer)? YES / NO
BANK-DETAILS CHANGE? YES → callback on HISTORIC no.: _______________
DUAL APPROVAL (2nd person + different channel): _______________
DECISION: verbal check on the known number BEFORE any payment

Small business with no accounting department

The manager applies the rule themselves: any changed bank details = call to the supplier on the historic number.

SME in Algeria

Karim has dual approval written into the internal procedure and keeps the directory up to date.

Large company / finance

Multiple approval thresholds and separate mandatory channels for sensitive amounts.

Voice / video deepfake

Even with the “CEO's voice”: hang up and call back the known number — voice proves nothing either.

Caution: If a fraudulent transfer has gone: immediate call to the bank to request a recall of funds, report to the police and notify insurance — the first hours offer a real blocking chance. Follow your company's internal procedure and your security contact's (CISO/IT) instructions: this guide gives the reflexes, not legal or banking advice.

✓ Best practices

  • Treat urgency + secrecy + transfer as FOVI.
  • Verify any bank-details change by callback on the historic number.
  • Require dual approval for unusual transfers.

✗ Common pitfalls

  • Taking the executive's real address as proof (compromised/spoofed account).
  • Obeying imposed secrecy without checking.
  • Executing an urgent transfer alone, with no second channel.

Key takeaways

  • Urgency + secrecy + transfer = FOVI until proven otherwise.
  • Any supplier bank-details change is verified by callback on the HISTORIC number.
  • Checking via another channel is not defiance: it is the procedure protecting everyone.
  • No real executive will ever blame a verification — fraudsters will.

48h Challenge - apply tomorrow

Test your circuit: who could alone execute a 25 000 € transfer at your place? Check the bank-details procedure (historic callback?) and share the scenario with whoever handles payments.

Section exit checklist
  • I can quote the FOVI trio and the absolute signal.
  • I can apply dual approval + historic callback.
  • I tested my payment circuit on the scenario.
Self-rating 1-5: facing urgency + secrecy + transfer, do I check?have I proposed the historic callback for bank details?

Frequently asked questions

The email came from the executive's REAL address: how is that possible?

Either the account is compromised, or the address is spoofed — in both cases, the address is not enough: it is the nature of the request (urgent, confidential, unusual) triggering the verbal check.

A fraudulent transfer has gone: can it be recovered?

Every minute counts: immediate call to the bank to request a recall of funds, police report (complaint), insurance notification. The first hours offer a real blocking chance — after 48h, it collapses.

Check your understanding

Karim receives: urgent transfer + “tell no one”. What verdict?

Additional resources (optional, to go further)

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