Trend Micro analyzed past 10 years of data breach history. Healthcare was hit hardest, accounting for 26.9 percent of breaches this decade, followed by education, government, and retail. Insider leaks were the primary source of identity theft cases (44.2%) and healthcare was hit harder by identity theft than any other sector. The value of data PII is still the likeliest data to be stolen, but its value on the black market is dropping — down from $4 per line last year, to just $1.”]
Source: https://www.darkreading.com/analytics/healthcare-biggest-offender-in-10-years-of-data-breaches