Equifax’s breach ranks among the largest cyber data breaches of all time, and the largest of 2017, so far. Further, Equifax’s breach is the largest involving Social Security or credit card numbers. Both Anthem and Equifax lost enormous numbers of consumer Social Security numbers, along with other personally identifiable information. Earlier this year, Anthem agreed to pay $115 million—the largest settlement ever for a data breach. And Equifax’s breach could be even more costly as they lost almost twice as many consumer records.
This article charts the top cybersecurity breaches of all time by number of records lost and by cost of the breach.