Business Email Compromise in Miami and Doral: 7 Payment-Verification Controls Every Small Business Should Use
A single convincing vendor, executive, or client email can redirect a legitimate payment before anyone realizes the mailbox was compromised. For businesses in Miami, Doral, Coral Gables, Brickell, and across South Florida, business email compromise (BEC) remains one of the most practical cyber risks because it exploits trusted business relationships—not just technical vulnerabilities.
BEC attacks commonly use a compromised account or a convincing impersonation to request a wire transfer, change bank details, buy gift cards, or disclose sensitive information. The email may look routine, but the financial impact can be immediate.
Why BEC deserves an owner-level response
The FBI’s Internet Crime Complaint Center (IC3) reported $20.877 billion in total reported cybercrime losses in 2025, up 26% from 2024. That figure is national—not a Miami-specific loss estimate—and reported losses do not capture every incident. It does show why payment fraud deserves a defined process, not an informal “be careful” reminder.
See the 2025 IC3 Annual Report and the FBI’s Business Email Compromise guidance for the source material.
7 payment-verification controls for Miami-area businesses
1. Verify every payment change through a second channel
Never approve a new bank account or payment change from email alone. Call a known phone number already on file, or use a previously established vendor portal. Do not use a phone number or link supplied in the suspicious message.
2. Require two-person approval for high-risk payments
Set a dollar threshold that requires a second employee to approve wires, ACH changes, urgent vendor payments, and executive requests. Separation of duties makes a single stolen mailbox less powerful.
3. Protect Microsoft 365 identities with strong MFA
Use multi-factor authentication for every business mailbox and prioritize phishing-resistant methods where your organization can support them. Review inactive accounts, shared mailboxes, delegated access, and privileged administrators regularly. CyberTrust’s User Protection service can help strengthen identity and endpoint defenses.
4. Train people to inspect the full sender domain
Display the complete email address—not just the friendly name. Watch for look-alike domains, unexpected reply-to addresses, unusual urgency, and requests that bypass normal procedures. Short, role-based training for finance, executives, and office managers is more useful than an annual generic presentation.
5. Monitor mailbox rules, forwarding, and unusual sign-ins
Attackers may create hidden forwarding rules or move messages into folders so employees miss warnings. Monitor new inbox rules, impossible-travel sign-ins, unfamiliar devices, and repeated failed logins. Proactive monitoring and response helps identify suspicious activity earlier and coordinate containment.
6. Keep a 15-minute BEC response playbook
Your playbook should name the people who can stop a payment, disable a compromised account, preserve evidence, contact the bank, and coordinate with your cyber insurer. Write it before an incident; stress makes improvised response slower.
7. Review vendors and payment procedures quarterly
Confirm that vendor contact information, bank details, approval limits, and callback procedures are current. Review the process after staffing changes, acquisitions, new banking relationships, or an incident affecting a trusted partner.
What to do if a suspicious payment was sent
Contact your bank immediately. Ask whether a recall or reversal is possible and provide the transaction details.
Stop the email conversation. Do not warn the attacker or continue clicking links.
Preserve evidence. Save the original message, headers, timestamps, payment instructions, and relevant login alerts.
Contain the account. Reset credentials, revoke active sessions, review mailbox rules, and check for unauthorized forwarding or delegates.
Report the incident. The FBI recommends reporting BEC to IC3; coordinate with your cyber insurer and counsel where appropriate.
The FBI specifically advises using a secondary channel or two-factor verification for account-change requests and contacting your financial institution quickly if funds were transferred.
How CyberTrust Partners can help
Payment verification works best when it is supported by layered controls. CyberTrust Partners helps South Florida organizations combine identity protection, endpoint security, backup readiness, and continuous monitoring through our Cybersecurity Foundation, User Protection, and Proactive Monitoring and Response services.
Want to find the gaps before a fraudulent payment request reaches your team? Request a CyberTrust consultation for your Miami, Doral, Coral Gables, Brickell, or South Florida business.
Sources and disclaimer
FBI IC3: Business Email Compromise · FBI IC3 2025 Annual Report
This article is for general educational purposes and is not legal, financial, or incident-response advice. If a suspected BEC incident occurs, contact your bank and appropriate internal, insurance, legal, and law-enforcement resources without delay.
