Existing strong authentication methods are unable to protect the user against increasingly common "man in the middle" and trojan security attacks. Instead, a new approach is required where the user effectively "signs" each transaction to authenticate it as genuine.

Cronto’s technology uses a unique authorisation code for each separate transaction, based on a challenge-response mechanism.

It provides secure instant transaction verification using a unique visual code that can be read by the end user using a Cronto client, and a one-time authorisation code typed back directly into the browser.