#4 LinkedIn And eHormany

The professionals’ social networking site LinkedIn and online dating site eHarmony were been hacked, about 64 million LinkedIn passwords were put at risk and about 30,000 passwords were cracked. About 1.5 million eHORMONY passwords were stolen and posted on an online password cracking forum. These combined attacks put the personal information of the million at risk.    

#3 Go Daddy

Go Daddy, the domain registrar and Web hosting firm, with more than 53 million registered domain names had suffered major outages following a major cyber attack, which potentially would have taken millions of sites down with it. The activist group Anonymous later claimed the responsibility however Go Daddy denied it. But it did result in many firms going for Go Daddy for a domain registration though.

#2 U.S. Environmental Protection Agency

Thousands of employees of the U.S. Environmental Protection Agency had their Social Security numbers, bank-routing information and addresses exposed in a cyber breach of an internal computer database, reported Bloomberg. It compromised 8000 employees’ and others’ social security numbers and banking information.

#1 Gostshell

An Anonymous-related group, Ghostshell leaked 120,000 records from the top universities by injecting malware and vulnerable links.