Typosquatting
Typosquatting: How One Wrong Letter Can Send Customers to a Scam
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Typosquatting Attacks: How One Wrong Letter Enables Phishing
The human brain associates quickly so it’s not too hard to mistakenly think you are dealing with a business you know and trust. This is where typosquatting lives and it’s a growing issue.
Typosquatting: One small typo. One big problem
A customer says they received an email from your business. A supplier has been asked to change bank details. Someone has found a website that uses your logo, colours, and company name, but the address is slightly wrong.
You look at the domain and see the difference immediately. Your customer did not.
That is the point of typosquatting. The attacker does not need to perfectly copy your website address. They only need an address close enough to exploit a hurried click, a mobile screen, an autocomplete mistake, or one letter typed in the wrong order.
Understanding the term helps, but it does not protect your brand or remove the fraudulent domain. That is why we built The TLD Project: to help businesses identify suspicious brand-related domains and take professional action.
The DNA of Typosquatting
Typosquatting is a domain impersonation technique in which an attacker registers a web address that closely resembles a genuine one. It relies on people making a typographical error when entering a website address, often directing them to an alternative and potentially malicious site.
The simplest example is a transposed letter:
- Genuine domain: yourcompany.com
- Typosquatted domain: yourcompnay.com
But attackers have many other variations available:
- A missing letter: yourcompny.com
- An added letter: yourccompany.com
- A repeated letter: yourcompanyy.com
- A substituted letter: yourcompanv.com
- A hyphenated version: your-company.com
- A different ending: yourcompany.co, yourcompany.shop, or yourcompany.site
- A keyboard-neighbour error: yourcompany.com becoming a domain with an adjacent-key substitution
Some variations are obvious when you compare them side by side. Others are not. A customer reading an email quickly, especially on a phone, may see your business name and assume the link is genuine.
What can a typosquatted domain do?
A typosquatted domain can be used in several ways. It may simply redirect visitors elsewhere, display adverts, or remain inactive while the attacker prepares a campaign. More serious cases involve a cloned website or a fake login page built to capture passwords, card details, personal information, or payment data.
An attacker may also use the domain to send emails that appear to come from your business. For example, accounts@yourcompnay.com looks close enough to accounts@yourcompany.com to fool a busy recipient. The email might request payment, ask a supplier to update bank details, or direct a customer to a fraudulent sign-in page.
This is where typosquatting overlaps with phishing. Phishing is the act of deceiving someone into revealing sensitive personal, corporate, or financial information through fraudulent messages or copycat websites.
A fraudulent domain does not have to show an obvious scam page to be dangerous. It could be configured for email only, redirect visitors based on location, or display harmless content until the attacker begins sending messages.
Why businesses should care
Typosquatting turns normal human error into a business risk. The consequences can include:
- Customers giving passwords or payment details to criminals.
- Fake invoices, payment-diversion fraud, and supplier impersonation.
- Lost sales when customers reach a fake or competing website.
- Complaints and reputational damage linked to an attack you did not create.
- Staff accounts being targeted through fake Microsoft 365, Google Workspace, payroll, or customer portal pages.
- More than one fraudulent domain registered around the same brand.
The threat is not limited to large household names. Any business with a recognisable name, customer base, payment process, login area, or supplier network can be imitated.
What to do
If you identify a possible typosquatting domain, preserve evidence before it changes. Record the full address, take screenshots, save suspicious emails with their headers, and note dates, redirects, copied content, and any branding used.
Do not enter credentials, payment details, or other information into the suspicious site to test it. Instead, assess whether the domain is being used for a website, email, redirect, phishing page, or another form of impersonation.
Then monitor related variations. Attackers commonly register more than one domain because they are testing several ways customers might mistype, misread, or trust your name.
The TLD Project helps businesses monitor domain variations across TLDs, identify potential impersonation risks, gather evidence, and begin the takedown process.
