The statement from the district said that the glitches had targeted district networks, including those needed to run My School Online, an online learning platform from a company called K12.
Jack Meyer, 17, a senior at Miami Palmetto Senior High School, had trouble logging onto the platform as soon as he started school on Monday. “It was really laggy,” he said. “About half the time, my classes wouldn’t load at all.”
He got repeated error messages about heavy traffic, and he tried to fix the problem by hitting the refresh button over and over again.
Mr. Meyer, who reported on the glitches for the school newspaper, said the problems had largely been resolved after teachers switched to other platforms, such as Microsoft Teams and Zoom.
The cyberattack raised questions about whether the company and the district had done enough to protect their networks, Mr. Levin said — and about whether the authorities were assigning blame to a student whose role in the attack did not appear to have required an especially high level of sophistication.
“The notion that a 16-year-old could bring down the entire I.T. system is concerning, and it should raise questions,” he said.
A spokeswoman for K12 said that while the network disruptions had affected the company’s delivery of service, K12 had not caused the attack and was not responsible for the district’s network. “Also note that the K12 network was not directly impacted, and no data was compromised,” she said.