Grandview School District experienced a data breach between September 28, 2024, and October 8, 2024, which was internally reported on October 8, 2024. An unknown actor gained access to certain GSD computer systems and viewed or downloaded data. The BlackSuit cybercriminal group claimed responsibility for the attack.
Personal information for 9,414 individuals was compromised, including names, Social Security numbers, student ID numbers, financial account information, health-related information, state-issued ID numbers (driver’s license), and dates of birth. The breach primarily affected residents of Washington. While the company confirmed the types of data exposed and the number of affected individuals, the full extent of the impact and any further regulatory actions are not yet clear.
Details can emerge later, and notices to affected individuals may be delayed.