Business email compromise examples are some of the most useful learning tools a security team has, because they show in plain terms how a few convincing words in an email can lead to enormous financial loss. BEC is now one of the costliest forms of cyber attack facing organisations of every size, and unlike malware it leaves almost no technical trace. By studying real world style examples of how these scams unfold, employees can recognise the warning signs and respond correctly before money or data leaves the business. This article walks through three common BEC scenarios, the lessons each one teaches and how to turn those lessons into lasting defences.
Why study real BEC examples?
Abstract advice about staying vigilant rarely changes behaviour. People remember stories far better than rules and seeing exactly how an attack played out makes the threat feel real and immediate. Examining genuine BEC scenarios helps employees understand the psychology at work, the small details that gave the scam away and the precise moment where a different decision would have stopped it. This is why case studies form such a powerful part of effective cyber security awareness training.
Studying examples also helps security teams design better controls. Each scam reveals a gap that attackers exploited, whether that was a missing verification step, an over-trusting culture or a lack of awareness about a particular tactic. By learning from incidents that have happened elsewhere, you can close those gaps before they are tested in your own organisation, rather than learning the hard way.
Example 1: The CEO impersonation scam
In this classic scenario, a member of the finance team receives an email that appears to come from the chief executive. The message is short, polite, and urgent: The CEO is tied up in a confidential deal and needs a payment made quickly to a new account, with a request to keep it discreet. There is no link and no attachment, just a believable request from someone the employee naturally wants to help.
The scam works by combining authority, urgency, and secrecy, three pressures that make people act before they think. The lesson is clear: No genuine leader will object to a payment being verified through a known, separate channel. A quick phone call to the CEO on a trusted number would have exposed the fraud instantly. Embedding that verify-first habit across the finance function is one of the simplest and most effective defences against this type of attack.
Example 2: The supplier payment switch
Here the attacker impersonates a known supplier, often after compromising the supplier's own email account. The accounts team receives what looks like a routine message stating that the supplier's payment details have changed, with a request to update their records for the next payment. Because the email comes from a familiar contact and references real, ongoing business, it raises few suspicions.
This example teaches that any change to payment details should trigger an independent verification, ideally a call to a previously known contact rather than any number provided in the email itself. It also highlights how attacks can arrive from genuinely compromised accounts, which is why reducing phishing across your supply chain matters too. Regular phishing simulations help your own people resist the credential theft that makes these supplier-based attacks possible in the first place.
Example 3: The payroll diversion
In a payroll diversion, the attacker poses as an employee and emails the HR or payroll team asking to update their salary payment details ahead of the next run. The message is friendly and plausible, and the change seems minor, so it is easy to action without a second thought. The result is that the employee's pay is quietly redirected to the criminal's account, often going unnoticed until the genuine employee reports a missing payment.
The lesson from this example is that requests to change personal or payment details should always be confirmed directly with the individual through a trusted channel, never on the strength of an email alone. It also shows that BEC is not only aimed at finance teams. Any department that handles requests involving money or sensitive data is a potential target, which is why broad cyber security training for employees across the whole organisation is so important.
Common threads across BEC attacks
Although the three examples target different teams, they share the same underlying pattern. Recognising these common threads helps employees spot a BEC attempt regardless of the disguise it wears.
- Impersonation of a trusted party: A senior leader, a supplier, or a colleague the target has no reason to doubt.
- Pressure and urgency: A sense that the request must be actioned quickly, often with a reason not to check with others.
- No malicious payload: No link or attachment for filters to catch, just persuasive plain text.
- A request involving money or data: A payment, a change of bank details, or the disclosure of sensitive information.
Once people learn to recognise this pattern, they become far harder to fool, because they stop focusing on whether an email looks technically suspicious and start asking the more important question: Is this request normal and have I verified it? Protecting sensitive information also depends on good everyday habits, which is where data security awareness training reinforces the same instincts.
Turning lessons into defences
Learning from examples only pays off if the lessons become embedded habits. The most effective defences combine clear processes with a workforce that is trained to follow them instinctively. Mandatory verification for any payment or detail change, dual approval for large transfers and an easy way to report suspicious requests all reduce the chance of a successful BEC attack. These process controls work best when paired with continuous anti-phishing training that keeps the threat front of mind.
It is equally important to treat awareness as an ongoing programme rather than a one-off event. Attackers refine their tactics constantly, so the examples that catch people out evolve over time. Reinforcing these lessons through regular online security awareness training ensures the habits stick across the whole organisation.
The real cost of a BEC attack
The financial loss from a single successful BEC attack can be substantial, but the true cost goes much further than the money transferred. Once an incident occurs, the organisation faces the time and expense of investigation, the disruption to normal operations and often a difficult conversation with banks, insurers, and regulators. Recovering funds sent to a fraudulent account is notoriously difficult and in many cases the money is gone for good.
There is a human cost too and an employee who unwittingly authorised a fraudulent payment can feel deep embarrassment and stress, even though the real fault lies with the attacker and any gaps in the process. This is exactly why a no-blame culture matters so much. When people feel safe to report a mistake quickly, the business has the best possible chance of containing the damage. Framing BEC as a shared organisational risk, rather than an individual failing, encourages the openness that limits harm.
Warning signs every employee should know
Beyond the broad pattern, there are specific red flags that should always prompt a second look. A request that is unusually urgent or asks for secrecy deserves scrutiny, as does any message that pushes you to bypass normal procedures. Slight differences in an email address or domain, a change in someone's usual writing style and requests that arrive at awkward times such as just before a weekend or holiday are all common indicators.
None of these signs is proof of fraud on its own, but together they should raise suspicion and trigger verification. The goal is not to make staff paranoid about every email, but to give them a clear mental checklist so that the genuinely risky requests stand out. When recognising these signs becomes second nature, employees can act confidently and quickly, stopping an attack without slowing down legitimate business.
How Boxphish can help
Boxphish helps organisations turn lessons like these into real, lasting protection. Our platform delivers engaging cyber security awareness training built around realistic scenarios, so employees learn to recognise BEC tactics in a safe environment rather than for the first time in their inbox. Combined with realistic phishing simulations, this helps cut the credential theft that so often makes BEC possible.
Because Boxphish is built around human risk, you can see exactly where your risk sits, track how it falls over time and direct extra support to the teams and individuals most likely to be targeted. Our focused anti-phishing training and broader cyber security training for employees give your whole organisation the instincts to pause, question, and verify. To see how it works, you can book a demo.
Final thoughts
Real BEC examples are a powerful reminder that the biggest losses often start with the most ordinary looking emails. Each scenario, from the CEO impersonation to the supplier switch and the payroll diversion, comes down to a person being persuaded to act without verifying. By teaching staff to recognise the pattern, building verification into everyday processes and reinforcing it with continuous training, you turn those hard lessons into a workforce that consistently stops BEC in its tracks.
