Medium riskBank & Payment

Micro-Deposit Verification Scam

In this scam, a fraudster sends or references small 'verification' deposits, then uses them to link your bank account to a service, or tricks you into confirming details that grant access for theft.

Quick verdict

Risk level
Medium risk
Scam type
Account linking / verification fraud
Main red flag
A request to confirm small 'verification' deposits to an unverified app or caller.
What to do first
Only confirm micro-deposits within services you set up and trust.

What this scam usually looks like

In this scam, a fraudster sends or references small 'verification' deposits, then uses them to link your bank account to a service, or tricks you into confirming details that grant access for theft.

Bank and payment scams weaponise your trust in your bank and your fear of losing money. They fake fraud alerts, blocked payments, or refunds, then steer you into moving money to a "safe account", sharing a one-time code, or approving a transfer, actions a genuine bank will never ask of you.

The single clearest warning sign to remember is this: A request to confirm small 'verification' deposits to an unverified app or caller. Only confirm micro-deposits within services you set up and trust.

Not sure this matches what you received? Compare it with the Open Banking Consent Scam or the Accidental Transfer Scam, browse the Bank & Payment Scams guides, or paste the exact message into our free scam checker.

By the numbers

#1
copycat bank fraud alerts were the most-reported text scam in the US in 2022
£459.7M
lost to authorised push payment (APP) fraud in the UK in 2023
Source: UK Finance

Example message pattern

Example pattern, not a real report
Example pattern: 'We sent two small deposits to verify your account, please confirm the amounts here to link it.' The link grants a scammer access.

This is a fictional, anonymised example used to illustrate the pattern. It is not a verified real message, and any names are used only to show how the scam typically reads.

Why this is a red flag: A request to confirm small 'verification' deposits to an unverified app or caller.

Red flags to watch for

  • A request to confirm micro-deposit amounts to an unfamiliar service
  • Small deposits you did not expect
  • A link or caller asking you to verify them
  • Pressure to confirm quickly
  • An app or service you cannot verify

What to do

  • Only confirm micro-deposits within services you set up and trust
  • Be wary of unexpected small deposits and verification requests
  • Review linked accounts and revoke unknown ones
  • Report suspicious requests to your bank

If you already clicked or replied

  • If you confirmed deposits to an unknown service, contact your bank
  • Revoke any account links you do not recognise
  • Change your online banking password from a trusted device
  • Review transactions for unauthorised activity

What not to do

  • Do not confirm verification deposits to unverified services
  • Do not act on unexpected deposit-verification requests
  • Do not share account details to 'verify'

Similar scams

Frequently asked questions

What are micro-deposits used for?
Legitimate services use small deposits to verify account ownership when you link an account you control. Scammers misuse this to link your account to their service.
I got unexpected small deposits. Is that a sign?
It can be. If you did not set up a link, be cautious and do not confirm the amounts to any unfamiliar service or caller.
I confirmed deposits to an unknown app. What now?
Contact your bank, revoke unknown account links, change your banking password from a trusted device, and review transactions.
How do I link accounts safely?
Only within services you set up and trust, and review and remove any account links you do not recognise.

Last reviewed June 2026 · Written & reviewed by the

Disclaimer: This page provides educational information only to help you recognise common scam patterns. It is not legal, financial, cybersecurity, or law enforcement advice, and it does not confirm whether any specific message, company, or person is genuine or fraudulent. When in doubt, contact the official organisation directly and report concerns to your local authorities.