Payment Link Security: Preventing Impersonation and Link Tampering

The short answer

Fraudsters copy merchant names, send look-alike payment links and edit amounts. Reduce the risk by generating links only from your provider's dashboard or API, sending them from known channels, keeping link details server-side so they cannot be edited, and teaching customers how to recognise your genuine messages. Never ask for PINs or one-time codes.

Common attacks

• Impersonation: a fake account using your name and logo sends links to your customers.
• Look-alike domains: URLs that resemble your provider's or your own domain.
• Tampering: changing the amount or recipient in a link built with editable parameters.
• Link reuse: an old, still-valid link paid again or forwarded.

Generating links safely

• Create links only through your provider's official tools.
• Make amount and order reference fixed by the provider, not editable query parameters.
• Set expiry dates and single-use where possible.
• Cancel unpaid links when orders change.

Sending links safely

• Send from your official, verified channels only.
• Include the order number and amount in the message so customers can compare with the page.
• Avoid URL shorteners unless your provider supplies a branded one.
• Do not send links in reply to unsolicited messages from new contacts without checking who they are.

Educating customers

Publish a short notice on your website and social profiles:

• "We only send payment links from [official page/number]."
• "Check the page address before paying."
• "We will never ask for your PIN or OTP."

Monitoring for impersonation

Search for fake accounts using your name regularly, report them to the platform, and warn customers if you find one.

When a customer pays a fake link

Help them contact their payment provider immediately, collect details of the fake link, and report it. Be empathetic; they believed they were paying you.

Internal controls

Limit who can create payment links, log every link created, and review unusual activity such as many links created at night. See staff roles and least privilege.

Checking your own messages

Review your message templates as if you were a customer. Do they always contain the order number and amount? Is the sender name consistent? Customers learn what your genuine messages look like, and a consistent format makes fake messages easier to spot. Changing your format often makes impersonation easier.

Ask a colleague to review a sample of sent links each month to confirm they used the official format, the correct amount and an expiry.

Frequently asked questions

Is a QR code safer than a link?

QR codes can be swapped or faked too. The same checks apply.

Should I include the customer's name in the link?

Avoid putting personal data in URLs; keep it in the provider record.

To discuss secure collection options, contact PayEurasia.