LA School District Says Hackers Accessed Massive Database

The Los Angeles public school system, the second-largest in the US, said an extortionist group had accessed a massive database but had not leaked as much sensitive information from it as initially feared.

Student and staff data of the Los Angeles Unified School District began appearing on the web on Sunday after it refused to pay a ransom to a group called Vice Society. The school system suffered a cyber attack on Labor day, and had been told that its data would be leaked if it didn’t pay to retrieve it.

Alberto M. Carvalho, the district’s superintendent, denied reports ...