Number Of Data Breaches In 2024. Billions of records, including social security numbers, were stolen recently in a massive data breach. In the first four months of 2024, healthcare was the most breached sector in terms of the number of publicly disclosed incidents, and it services and software was the most.

The number of people affected by data breaches in the first half of this year totalled more than 1 billion, a new report shows. A series of data thefts from cloud data giant snowflake quickly snowballed into one of the biggest breaches of the year, thanks to the vast amounts of data stolen.