Following the devastating cyber-attack on Mat Honan’s digital life, Amazon changes its policy and fixes the security hole by no longer allowing people to call Amazon and change account settings like credit cards and e-mail addresses. Previously, Amazon’s phone policy essentially allowed hackers to use social engineering tricks on support representatives to learn sensitive information about targets like Honan.
Read more here – http://arstechnica.com/security/2012/08/amazon-fixes-security-flaw-hackers-used-against-wireds-mat-honan/