Building A Security Culture Your Finance Team Will Own
Sophie Turner
6 Min
Most Financial Breaches Start With A Convincing Email, Not A Sophisticated Exploit. The Defence Is Cultural Before It Is Technical.
Invoice fraud, payee changes and urgent transfer requests exploit people, not systems. The defence is a culture where verification is normal, questioning a request is expected and nobody is embarrassed to pause a payment, even when the request appears to come from the most senior person in the company.
Make Verification The Default
A bank detail change should always be confirmed through a second channel, ideally a phone call to a number you already hold rather than one in the email. When this is the rule for every change, nobody feels awkward applying it to a senior request, and the awkwardness is where fraud usually hides.
Habits That Protect Money
Dual approval for new payees and for any transfer above a threshold the team agrees on and revisits.
A shared, searchable log of who approved what and why, so the reasoning behind a payment is available to anyone who asks later and an unusual request stands out against the pattern instead of disappearing into a busy inbox.
Regular, short simulations that reward reporting rather than punishing clicks, so people learn to speak up quickly.
How To Get Started
Write down the three riskiest payment paths in your company, assign an owner to each one and ask that owner to describe, in one page, how a fraudulent request would be caught today.
Review one real incident a month with the whole team, focusing on the process that let it through rather than the person who was targeted, because blame teaches silence.
Why It Sticks
Culture holds when leaders follow the same rules they set. A CEO who waits for dual approval on their own transfer teaches more than any training module.
Tools still matter, and the right controls make the safe behaviour the fast one, but a team that has practised saying wait, let me check that will catch the attack that slips past every filter. That habit is built in small moments, most of them uneventful, which is exactly why it works when the eventful one arrives.
