Instrusion into L.A. school district's system began as early as July 31. Previously, officials spoke of attack that began and ended on Sept. 3.
An intrusion into the computer systems of the Los Angeles school district began more than a month earlier than
Stealing data is only one part of an attack. The second part involves encrypting computer systems so that its users cannot get in, paralyzing the ability to conduct everyday business. Hackers managed to encrypt servers in the district’s facilities division, but had limited success elsewhere, even though normal operations, including classroom instruction and record-keeping, were more difficult for about two weeks.
“Between July 31, 2022, and Sept. 3, 2022, an unauthorized actor accessed and acquired certain files maintained on our servers,” states the required notice, which was filed with the state last week.On Friday, the district said the original one-day attack scenario remains correct. “Hackers are often inside networks for weeks or even months before they deploy the ransomware that encrypts the systems,” said Brett Callow, threat analyst for the cybersecurity company Emsisoft. “This means there’s a window of opportunity during which threats can be detected and neutralized before they become full-blown ransomware incidents.”
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