As of December 22, 2015, the Identify Theft Resource Center had reported a total of 766 data breaches. These data breaches reached a staggering total of 177,840,420 files being exposed. Below are the top seven breaches, in 2015, identified by iDigitalTimes in terms of the most users affected.
78.8 million patient records were accessed.
#2. Ashley Madison
37 million user files were exposed.
21.5 million records were compromised.
15 million T-Mobile customers were affected.
11.3 million accounts were accessed worldwide.
#6. Premera Blue Cross
11 million members’ information was affected.
#7. Excellus BlueCross BlueShield
10 million member files were leaked.