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.
#1. Anthem
78.8 million patient records were accessed.
#2. Ashley Madison
37 million user files were exposed.
#3. OPM
21.5 million records were compromised.
#4. Experian/T-Mobile
15 million T-Mobile customers were affected.
#5. VTech
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.