- Your firewall, email gateway, and endpoint protection all do their job inside your perimeter — but they offer zero protection to a customer who lands on a cloned version of your website somewhere else on the internet.
- Nearly half of all cyberattacks now involve brand spoofing aimed at an organization's customers and partners, not its own network — and the average company faces roughly 1,100 spoofed domain exploits a year.
- Mimecast Brand Exploit Protect extends protection past the firewall: finding impersonating domains as they're registered, investigating and scoring them automatically, and getting confirmed threats taken down in hours, not days.
Blog
The Security Perimeter Nobody Talks About: Your Customers
By Deepti Mittal
Key Points
Your security stack is very good at protecting you. It's less good at protecting the people who trust you.
A customer doesn't experience your firewall, your email gateway, or your endpoint protection. They experience your brand: your logo, your login page, the email that looks like it came from you. The moment an attacker builds a convincing copy of that experience on infrastructure you don't own, every control you've invested in stops applying — because the attack never touches your network at all.
The Problem: Protection That Stops at Your Walls
The scale of this is easy to underestimate until you see it in hard numbers:
- 1.5M+ domains reported for phishing in 12 months, 77% registered maliciously from day one. (Interisle Consulting, 2025)
- $2.95B lost to business and government impersonation scams in 2024 (FTC, 2024)
- 92% of S&P 500 market value now held in brand and other intangibles (Ocean Tomo, 2025)
Consider a mid-size outdoor retailer, Northfield Outfitters, selling gear at northfieldoutfitters.com with a loyalty program tied to stored payment details.
An attacker registers northfield-outfitters.com — one hyphen, an SSL certificate, and a scraped copy of the real homepage later, it's indistinguishable at a glance. An email goes out to loyalty members: ”Your Rewards points are expiring — sign in to keep them.” The sender name and link text both read ”Northfield Outfitters”; the actual destination doesn't. Customers who don't catch the extra hyphen log in normally, hand over their credentials and saved payment details, and move on without a second thought.
Weeks later, Northfield's support line is fielding calls about unauthorized charges. Nothing in Northfield's own systems was ever touched — but the customer doesn't know that, and often neither does the press. Three in four consumers say they'd cut ties with a brand after a security incident, even when that brand was the victim rather than the cause.
That's the uncomfortable part of brand impersonation: your security posture can be flawless and it still happens, because the vulnerability isn't in your systems. It's in how easy it is to register a domain and copy a web page. Traditional email security has no visibility into a domain that didn't exist yesterday — by the time a phishing campaign using it reaches an inbox, the fake site has often been live, and collecting credentials, for hours or days.
Related Tags
- Email & Collaboration Security
