First hour: call your bank
Do this before anything else. Banks can sometimes freeze or recall funds that are still sitting in the receiving account, but scam accounts are usually emptied within hours. Every minute matters.
Ask specifically for a recall or trace on the transaction, and get a reference number for the report.
- Phone your bank's fraud line — do not use email or a web form.
- Give them the exact date, amount, BSB and account number you paid.
- Ask them to contact the receiving bank to freeze the funds.
- Ask for a written reference number for your report.
Then: report it properly
Reporting does two things — it creates the paper trail your insurer or accountant will need, and it feeds intelligence that helps stop the same account being used on someone else.
- Scamwatch (scamwatch.gov.au) — the national scam reporting service.
- ReportCyber (cyber.gov.au) — the police reporting channel for cybercrime.
- Your insurer, if you hold cyber or crime cover.
- Your accountant or bookkeeper, so the payment is not reconciled as legitimate.
Assume the email account is compromised
Most payment redirection scams start with someone reading email — either yours or your supplier's. If a fake invoice or bank-change request landed in your inbox and it looked genuine, treat the mailbox as untrusted until proven otherwise.
- Change the password on the email account that received the invoice.
- Turn on two-factor authentication on that account today.
- Check for mail forwarding rules you did not create — this is the classic sign of a compromised mailbox.
- Tell the real supplier. Their system may be the one that was breached.
Stop the next one
Businesses that get hit once are very often targeted again, because the attacker now knows your payment run, your suppliers, and who signs off. The fix is a check that happens before money moves, every time — not a reminder to be careful.
RILLA Shield auto-scans invoices and payee details before a payment is released, flags when a supplier's bank details change, and can hold a pay run automatically when something does not add up.