Guides

Securely Using Online Banking: The Key Rules

Here’s how you protect your account from fraudsters: correct login, secure authorisations, common phone scams, and what to do if something goes wrong.

Updated on 1/11/2026

Straight to the bank

Access your online banking only through the banking app or by typing in the address yourself or using a saved bookmark. Never click on links from emails, texts or search ads – fake bank pages even show up in search results.

Read the details before you confirm

Whether it’s an app approval, a TAN generator or a code: check exactly what you’re approving before you confirm. If a transfer, a new device or a card payment appears that you didn’t initiate yourself, stop immediately. Scammers often disguise transfers as a “security check” or a “refund”.

The most common scams

  • Fake bank employee on the phone: the number on your display looks authentic but is spoofed. The caller asks you for approvals to supposedly stop fraud. Real bank staff never ask for codes or approvals.
  • “Your account will be locked” message: the link leads to a fake login page.
  • “New security procedure”: you’re asked to set up the app again via link or phone call – in reality, the scammers link their own device to your account.
  • Remote access: claimed support wants to access your computer while you open banking.

Basic protection in five steps

  • Keep your phone, computer and banking app up to date.
  • Use a strong, unique password for your banking that you don’t use anywhere else.
  • Lock your phone with a PIN or fingerprint.
  • Turn on notifications for every transaction so you immediately spot anything unusual.
  • Set a daily limit for transfers that fits your everyday habits.

Banking while you’re out

In unfamiliar Wi-Fi networks – at a café, hotel or train – you can’t know who runs the network. A VPN encrypts your connection, ensuring no one can read your data or silently redirect you. Even simpler: use your mobile data instead of an open Wi-Fi network for banking on the go.

If something goes wrong

  • Immediately call your bank or have your card and access blocked – in Germany you can do this 24/7 via the emergency lock-in hotline 116 116.
  • Change your banking password from a clean, safe device.
  • Collect evidence and file a police report.
  • Find a checklist to take all the necessary steps on our First Aid page.

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