The world has changed radically since the first edition of this book was published in 2001 Spammers virus writers phishermen money launderers & spies now trade busily with each other in a lively online criminal economy & as they specialize they get better In this indispensable fully updated guide Ross Anderson reveals how to build systems that stay dependable whether faced with error or malice Here's straight talk on critical topics such as technical engineering basics types of attack specialized protection mechanisms security psychology policy & more