
A cyberattack targeting the huge Los Angeles Unified School District over the Labor Day weekend prompted an unprecedented shutdown of the district's information technology systems as authorities scrambled to trace the perpetrators and restrict potential damage.
Schools in the nation's second-largest district opened as scheduled on Tuesday and 540,000 students and 70,000 district employees were forced to change their passwords to prevent additional incursion. Though the attack used technology that encrypts data and won't unlock it unless a ransom is paid, in this case the district's superintendent said no immediate demand for money was made.