Verizon Analysis: Top 10 Causes Behind Data Breaches

4. Hacking

Some form of hacking took place in 52 percent of breaches analyzed by Verizon. Attackers often used a backdoor to gain remote access onto a victim's system. In some cases, attackers used SQL injection, a common Web application vulnerability to gain access to a website and its underlying database servers. Malware and hacking still rank as the most common actions, but they were scaled back rather significantly among 2012 breaches, with social methods increasing, Verizon said.

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