An external system breach discovered on June 14 exposed the names, phone numbers, email addresses and ID numbers of 99 employees of Plainedge Public Schools.
According to the incident report, those affected were not notified for another 10 days.
Officials said schools are easy targets for hackers because their systems carry massive amounts of data that can be sold for identity theft. In many cases, they lack resilient IT departments, and the rapid transition to remote learning during the pandemic left them vulnerable.
Long Island schools reported at least 29 cyber attacks between 2019 and 2021, including a major ransomware incident in September that caused the Manhasset School District to temporarily close its computer network.
