Security is an issue on every level of communication. If you order a bread at the bakery you pay and receive your bread. This face to face approach doesn’t really need any security. What does it matter if your neighbor, in line next to you, overhears you ordering a bread and sees you pay as long as you get your bread? But what if this would be done online and it involves not a bread but a loan or a transfer from your savings account? You wouldn’t want a John Doe messing with the data you need to communicate with your bank, would you? Read the rest of this entry »