The Florida Department of Law Enforcement has closed its six-month investigation into a cyber attack during Florida Standards Assessments testing this spring.
The agency isn't saying who tried to shut down testing by overloading servers or why. But law enforcement officials said no personal student data was accessed during the attack.
FDLE said it found that more than 29,000 Internet addresses were used to swamp servers run by test contractor American Institutes for Research. Some of the addresses were in the U.S., but most were believed to be foreign.