More than 900 data breaches led to nearly two billion records being compromised worldwide in the first half of 2017, digital security company Gemalto said in a new report. In the first six months of this year, 918 data breaches led to 1.9 billion data records being compromised, a "staggering" 164% increase from the number of lost, stolen or compromised records in the last six months of 2016, Gemalto said in a press release earlier this week. While "a large portion" came from the 22 largest data breaches, each involving more than one million compromised records, 59% of the 918 breaches had an "unknown or unaccounted" number of compromised data records.