What GAO Found
The nation's 16 critical infrastructure sectors rely on electronic systems to provide essential services such as electricity, communications, and financial services. Federal entities have key roles in helping to protect these sectors.
The 14 federal agencies in GAO's review—CISA, FBI, and the other 12 sector risk management agencies—reported relying on 11 methods to facilitate sharing of cyber threat information with critical infrastructure owners and operators. As shown in figure 1, these agencies used each of the 11 methods to varying degrees (see the numbers next to each method).
Figure 1: Number of Methods Used by 14 Federal Agencies Sharing Cyber Threat Information
The 14 agencies varied in the number of information sharing methods that they each used. Specifically, four agencies—the Department of Defense, the Department of Energy, CISA, and FBI—used more than half of the 11 sharing methods and 10 agencies used fewer than half of the 11 sharing methods.
The agencies ..
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