Super Bowl 50 Draws Look at Wide Array of Possible Threats

But the information is neither specific nor new, officials say.

In laying out the possibilities, the assessment pointed to a series of attacks on fiber-optic cables that continued into last year, and noted potential threats and criminal uses of commercial drones. It also cited recent attacks by so-called “lone wolf” terrorists inspired by ISIS or other groups, according to federal law enforcement officials familiar with the assessment.

“It’s an overview of threats that can be possibly posed,” but it does not offer any new information, one federal official said.

A second federal official told ABC News that the Department of Homeland Security and FBI authored the assessment because Santa Clara doesn’t often host events as big as the Super Bowl, so federal authorities want to make sure their state and local partners are aware of and prepared for anything.

Levi’s Stadium is home to the NFL’s 49ers and about 40 miles from San Francisco.