Interesting articles which emphasizes online security concerns:
"Sony Network Said to Have Been Invaded by Hackers Using Amazon.com Server" (May 14, 2011)
All it takes is one incident to cripple a company's online reputation:
"Sony offered customers a free year of identify-theft protection after its PlayStation Network and Qriocity entertainment networks were crippled by the attack. Thieves may have stolen credit-card, debit records and other personal information from customers of Sony Online Entertainment, a third service. The New York Attorney General's office has subpoenaed Sony, according to a person familiar with the probe."
"Bloomberg doesn't say how Amazon's cloud service was used to mount the attack. If the report is correct, it wouldn't be the first time it's been used by hackers.
German security researcher Thomas Roth earlier this year showed how tapping the EC2 service allowed him to crack Wi-Fi passwords in a fraction of the time and for a fraction of the cost of using his own computing gear. For about $1.68, he used special "Cluster GPU Instances" of the Amazon cloud to carry out brute-force cracks that allowed him to access a WPA-PSK protected network in about 20 minutes.