One serious threat on the horizon is the man-in-the-browser (MITB) attack. In this example,
1. Alice requests transfer of $1,000 to Bob.
2. MITB alters transfer request to transfer $21,000 to Fred.
3. MITB submits fraudulent request to bank.
4. Bank requests confirmation of transfer of $21,000 to Fred.
5. MITB alters confirmation page to present user with original request.
6. Alice reviews the transaction details and confirms request.
7. Bank transfers $21,000 to Fred.