A total of 945 data breaches has led to 4.5 billion data records being compromised worldwide in the first half of 2018, according to Gemalto's Breach Level Index, a global database of public data breaches.
Compared to the same period in 2017, the number of lost, stolen or compromised records increased by a staggering 133 percent, though the total number of breaches slightly decreased over the same period, signaling an increase in the severity of each incident.
A total of six social media breaches, including the Cambridge Analytica-Facebook incident, accounted for over 56 percent of total records compromised. Of the 945 data breaches, 189 (20 percent of all breaches) had an unknown or unaccounted number of compromised data records.
According to the Breach Level Index, almost 15 billion data records have been exposed since 2013, when the index began benchmarking publicly disclosed data breaches. During the first six months of 2018, more than 25 million records were compromised or exposed every day, or 291 records every second, including medical, credit card and/or financial data or personally identifiable information. This is particularly concerning, since only one percent of the stolen, lost or compromised data records were protected by encryption to render the information useless, a percent-and-a-half drop compared to the first six months of 2017, says Gemalto.