It's totally up to you which functionalities in your account you want to en- or disable.
The following settings are currently available:
Cash withdrawal: When this functionality is disabled, we will reject all ATM cash withdrawals.
Online transactions: When you disable online transactions, all online purchase attempts will be rejected.
You can configure the setting for each of your cards separately.
You can access the settings when you tap "Security settings" on the card screen. Toggles indicate whether functionality is enabled or not. To disable a functionality, simply slide the toggle to the left.