In mid to late 2015, a spam list known as the Special K Data Feed was discovered containing almost 31M identities. The data includes personal attributes such as names, physical and IP addresses, genders, birth dates and phone numbers. Read more about spam lists in HIBP.
Accounts breached: 30741620
Breached on: October 07, 2015
Exposed data: Dates of birth, Email addresses, Genders, IP addresses, Names, and Physical addresses
Added on: November 24, 2016