No, if you have lost your phone, others cannot access your banking. The ABN AMRO app is well secured with your identification code, fingerprint (Android), Touch ID (iOS) or Face ID (iOS).
Approve your purchase, securely via your banking app or with online banking. Pay online. On the phone. From a bill.
Bank never asks for such information. For better control & security of your account, you can Lock or Unlock your INB access through link "Lock & Unlock User" available at bottom of this Page. SBI Secure OTP application has been discontinued.

Moving forward, it's essential to keep these visual contexts in mind when discussing Secure Banking App On Phone.
Learn how to build a secure and functional banking application from scratch using Java and Spring Boot in this comprehensive tutorial.
N26 is the Mobile Bank. Free bank account and Mastercard that you can manage directly from your phone. Open your bank account online in minutes.

Furthermore, visual representations like the one above help us fully grasp the concept of Secure Banking App On Phone.
Mobile Banking App for iOS & Android KeyBank.