"These individuals are known to have accessed images of the Edward Jones Dome and RCA Dome, " the source said.

CNN: White House urges 'joyous' but vigilant Fourth

The other stadium noted in the bulletin is the RCA Dome in Indianapolis, which is home to the NFL's Indianapolis Colts.

CNN: White House urges 'joyous' but vigilant Fourth

Despite the roll the Colts have been on the past few seasons, the team has been stuck at the bottom the NFL's financial standings due to Indy's small market and its antiquated stadium, the RCA Dome.

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