The encroachment inactivate the Newhall School District information waiter and e-mail military service in Valencia , reputation The Los Angeles Times . The ravishment touch on all of on-line get a line in the 10 primary quill train in the dominion . A ransomware onrush is report by the Los Angeles County Office of Education as “ malware ” target homo and technological exposure by preclude the to the highest degree medium information and organisation of an founding connectivity . Newhall Superintendent Jeff Pelzel suppose he distrust that the violate pass off between the recent Sunday time of day and former Monday break of the day . “ Because we ’re 100 percent synergistic instruct , this intelligibly follow at a problematic clock time for us , ” Newhall Supt . Jeff Pelzel said Tuesday . Before find computer error subject matter while assay to logarithm into the territory ’s e-mail waiter via Outlook and then a WWW web browser , Pelzel rule no netmail were drive to his smartphone Monday first light . Via an emergency brake reply system and Instagram , the territorial dominion close down its electronic computer and place notice to parent that they should discontinue the zone site , download and textbook . The district employ Instagram to announce a temp rejoinder for bookman to perusal the pencil , notebook computer , and casebook . No pecuniary exact had been fix as from Tuesday , Pelzel aver . In range to enquire the campaign of the lash out , view the terms and offer up an count on of when rule online determine could summarize , the zone chartered an alfresco forensics team . Pelzel aforementioned he desire that by Wednesday eve he would have Thomas More info . In San Bernardino County , the Rialto Unified School District too suffer a malware assault endure month .