According to the Mariposa Sheriff's office, on the morning of April 10, deputies learned Mariposa County Unified School District Superintendent's Office, received an email from an unknown person who threatened to bring a gun and bombs to school to harm students and staff.
The email MCUSD received was generic and did not include specific school sight details. The district contacted the Sheriff's Office immediately after reading the email.
Yesterday multiple school districts throughout California received generalized email threats that were made from a known hacking group called ApophisSquad.
At this time the Mariposa County Sheriff's Office believes MCUSD was one of those districts. The email MCUSD received is identical to the others received by other school districts.
The AposhiSquad group has been targeting schools in the United Kingdom over the past few weeks and has announced they are starting to target schools in the United States.
ApophisSquad claims to be a "team of people running around the internet" based in Braubunden, Switzerland, according to their Twitter page.
The Mariposa County Sheriff's Office does not have any information at this time that the email threat is credible and targeting county schools.
The sheriff's office stated, "with the information we have, there is no reason to believe that anyone's safety is threatened at any of the school sites in Mariposa County. At this time our investigation points to this current threat as just one of many unfounded threats received nationwide in the recent months."
The Mariposa County Sheriff's Office and the FBI are continuing to investigate.