Context: Computers control functions at many utilities, including coordination of telecommunications, the power grid, nuclear power plants, and valve opening and closing in water and gas networks. The Internet is a potential attack vector for such machines if connected, but the Stuxnet worm demonstrated that even equipment controlled by computers not connected to the Internet can be vulnerable to physical damage caused by malicious commands sent to industrial equipment (in that case uranium enrichment centrifuges) which are infected via removable media. In 2014, the Computer Emergency Readiness Team, a division of the Department of Homeland Security, investigated 79 hacking incidents at energy companies.

Question: What is a potential attack vector for utilities such as the power grid?
Answer: The Internet

Question: What demonstrated equipment controlled by computers not connected to the internet can also be vulnerable?
Answer: the Stuxnet worm

Question: When did the Computer Emergency Readiness Team investigate 79 hacking incidents at energy companies?
Answer: 2014

Question: What department does the Computer Emergency Readiness Team belong to?
Answer: the Department of Homeland Security

Question: How did the Stuxnet worm infect industrial equipment?
Answer: via removable media

Question: What division was part of the Department of Homeland Security?
Answer: Unanswerable

Question: Can computers not attached to the internet be attack by a virus?
Answer: Unanswerable

Question: What industrial equipment effected after receiving malicious commands?
Answer: Unanswerable

Question: What type of damage was dealt to the industrial equipment?
Answer: Unanswerable

Question: What controls the functions of our utilities such as telecommunications, power grid, nuclear power plants, etc?
Answer: Unanswerable

Question: What controls computer functions?
Answer: Unanswerable

Question: Who created the Stuxnet worm?
Answer: Unanswerable

Question: When was the Stuxnet worm created?
Answer: Unanswerable

Question: What was infected in the 79 hacking incidents at energy companies?
Answer: Unanswerable

Question: How many people were on the Computer Emergency Readiness Team?
Answer: Unanswerable