Bestu venjur at hindra rokningasvikul 2026

Invoice fraud has become one of the fastest-growing financial crimes targeting small businesses and freelancers. From fake invoice scams to payment redirection attacks, the threats are real and evolving. Here's how to protect yourself in 2026.

Understand the Main Attack Vectors

The most common invoice fraud types include: CEO fraud (impersonating a manager to request urgent payments), vendor impersonation (sending invoices that mimic legitimate suppliers), and payment detail tampering (intercepting invoices and changing bank details). All three exploit trust and urgency.

Use Numbered, Sequential Invoices

Always use sequential invoice numbers via your invoice management system. Gaps in your invoice sequence are a red flag — both for fraud and for tax audits. Automated numbering removes human error from this process.

Verify Payment Detail Changes by Phone

If a client or supplier sends an email asking you to update bank account details, always verify by calling a known number — not one provided in the email. Payment redirection fraud relies on victims not making this simple call.

Send Invoices From a Consistent Domain

Use a professional business email and always send invoices from the same address. Clients who receive an invoice from an unfamiliar email address should be trained to verify before paying.

Protect Your Invoice Templates

If you use PDF invoices, password-protect editable versions. With a platform like Arbeitly, invoices are generated and delivered digitally with no editable file to intercept. This significantly reduces tampering risk.

Monitor for Duplicate Payments

Duplicate payment scams target disorganised accounts payable processes. Your financial dashboard should make it easy to spot if an invoice has been paid twice or if unexpected payments appear.

Educate Your Clients

Your clients are part of your security posture. Include a note on your invoices stating that your bank details will never change without a verified phone call. This simple message can prevent a costly fraud incident.

Invoice fraud prevention is primarily about process discipline. Implement these practices, use a professional invoicing platform, and train anyone who handles your payments. The cost of prevention is a fraction of the cost of a single successful fraud.