Secure use of the Internet and e-finance

PostFinance makes security its top priority for financial transactions conducted online. E-finance uses a comprehensive, multi-level security system. Your payments are protected by a multi-level firewall, encryption and our automatic transaction monitoring.

Attempted fraud on the Internet increasingly targets users and their computers. With just a few simple measures, you can protect yourself against the main threats and use e-finance and the Internet securely.

  • PostFinance will never contact you by e-mail or telephone asking you to log in or to disclose your security elements.

    If you receive an e-mail asking you to log in, to reveal personal data or to open an attachment, it is probably an attempt at fraud. Delete the suspicious message.

    Please call our Contact Center immediately if you disclose data or have opened a suspicious attachment.

    PostFinance only sends digitally signed e-mails. Most e-mail clients (Outlook, Thunderbird, Windows Mail, support digital signatures and represent them with a seal, a sealed envelope or a tick.

  • Your connection to PostFinance is protected with strong encryption. This ensures that nobody can intercept your data. You can tell there is a secure connection from the green text in your browser’s address line. Before you log in, always check that the text is shown in green.

    Your connection is automatically protected with the PostFinance Apps.

  • Your access to e-finance is protected with modern, multiple-factor authentication. For all login methods, choose a strong password that includes lower and upper case letters, digits and special characters, and only use it for e-finance. You have three ways of logging in.

    Login via app

    To log in via the PostFinance App, all you need is your smartphone. You can log in to e-finance and e-trading securely with fingerprint or Face ID. You can log in on your desktop, tablet and smartphone.

    Login via Mobile ID

    You need a SIM card from your mobile phone provider which is compatible with Mobile ID. With Mobile ID, you get access to e-finance wherever you are. You can log in on your desktop, tablet and smartphone.

    Login with card reader

    For the ChipTAN login procedure, you will need a card reader and your PostFinance Card. Here, a unique code (Challenge) generates a unique value (Response) so you can log in. You can log in on your desktop, tablet and smartphone.