What Is Business Email Compromise — And How Do RGV Businesses Get Hit?

Business Email Compromise — BEC — is the single most financially damaging cybercrime in the United States, costing businesses billions of dollars every year. And it doesn't require sophisticated hacking. It starts with an email.

What Is BEC?

BEC is a social engineering attack where a criminal impersonates someone you trust — your CEO, your attorney, your vendor, your bank — and tricks you or your staff into wiring money or sharing sensitive credentials. No malware required. No phishing link to click. Just a convincing email at exactly the right moment.

The most common BEC attack targeting RGV businesses involves real estate and title transactions. An attacker monitors an email thread — either from a compromised account or a lookalike domain — waits until closing is near, then steps in and redirects the wire transfer instructions. By the time anyone realizes what happened, the money is gone.

A Real Example From the RGV

We've investigated BEC attacks firsthand in McAllen. In one case, attackers registered bigrealtys.com — a single letter different from the legitimate firm's domain. They intercepted email communications during a real estate closing and nearly succeeded in redirecting a six-figure wire transfer. The domain was active, the email looked identical, and the only difference was one extra letter that nobody caught in time.

Why Title Companies and Law Firms Are Prime Targets

Any business that regularly wires large sums of money is a target. In the RGV, that means title companies, real estate attorneys, escrow officers, and accounting firms. These businesses have predictable transaction patterns, communicate heavily by email, and often don't have the technical defenses in place to catch spoofed domains or compromised accounts.

The Three Layers of Defense

• SPF, DKIM, and DMARC: Email authentication records that prevent attackers from spoofing your domain. Most RGV businesses don't have all three properly configured. This is the single most impactful technical fix you can make.
• Advanced anti-phishing filters: Beyond basic spam filtering, AI-powered tools that detect lookalike domains, display name spoofing, and suspicious email behavior before messages reach your inbox.
• Staff training: Your employees are the last line of defense. A wire transfer verification policy — calling the recipient at a known number before any large wire — stops BEC even when the email gets through.

BEC attacks are growing in sophistication, but the defenses are well understood. If your business handles wire transfers, invoices, or sensitive financial communications by email, this is not a risk you can afford to ignore.