This document summarizes data breach incidents from 2013. It reports that there were 2,164 data breach incidents in 2013, resulting in over 822 million records being stolen. The largest breaches exposed over 100 million records each. Most breaches were caused by hacking from external sources, with the top causes being malware, stolen computers, and exploitation of vulnerabilities. The largest breaches of 2013 compromised personal information like names, email addresses, passwords, credit cards, and social security numbers from major companies and government agencies. The document emphasizes that data breaches are increasingly common and that all organizations are at risk of being hacked.