OLIVIA Key TKB

OLIVIA Key TKB is your secure digital key for e-banking and mobile banking with Thurgauer Kantonalbank. Confirm your login and authorize payments with industry-leading security using the CrontoSign authentication system.

The app uses PhotoTAN technology to protect your account. When you log in or approve a transaction, your security code appears as a colored mosaic pattern. Simply photograph it with the app, and the security code is automatically decrypted and entered for you. This visual confirmation method ensures only you can authorize actions on your account — the mosaic changes with each use, making it impossible for attackers to replicate or intercept your credentials.

Activating the new login procedure is straightforward. An interactive step-by-step guide walks you through setup, with a video explanation also available to help you get started. Once activated, you'll use the app every time you access e-banking or the TKB mobile app, giving you peace of mind that your banking sessions are protected by the latest security standards.

The app works seamlessly alongside your existing TKB services. If you're an e-banking customer being transitioned to the CrontoSign system, you'll see an option to update your contract when you next log in — the process is quick and handled within your e-banking interface.

Security is built into every interaction. The colored mosaic pattern is unique to each login and transaction, and the decryption happens locally on your device. No codes are transmitted or stored in plain text, and the visual nature of PhotoTAN means you can always verify exactly what you're confirming before the transaction proceeds.

Download OLIVIA Key TKB today and enjoy secure access to your Thurgauer Kantonalbank accounts. Your digital key is always with you, ready to authenticate your banking sessions and authorize payments whenever and wherever you need them.