If your school uses the A+nyWhere Learning System from K12 Inc, there's a good chance your student's PII data was exposed between June 23 and July 1.
The system, used by over 500 school districts. 19,000 names, birthdays, and genders were all openly available during the time period. In total 7 million files belonging to K12 Inc. were exposed.
You can read more about the breach here: https://blogs.edweek.org/edweek/DigitalEducation/2019/07/k12-data-privacy-breach.html