Testing company claims hacker attacks caused cancellation of Florida computer tests.

http://www.tampabay.com/news/education/testing/state-says-cyber-attacks-caused-school-testing-problems/2220635

"Cyber attacks were at least partially to blame for last week's problem-plagued rollout of the new Florida Standards Assessments, the state education department said Monday.

Education commissioner Pam Stewart said her department was working with law enforcement "to ensure they identify the bad actors and hold them accountable to the fullest extent of the law."

Students across the state had complained about blank white screens while testing Thursday. Those white screens, the education department now says, were part of an attack intended to prevent access to the tests."