TY - Report AU - U.S Government Accountability Office PY - 2016 T1 - Information security: agencies need to improve controls over selected high-impact systems PB - U.S Government Accountability Office DO - https://doi.org/APO-64975 UR - https://apo.org.au/node/64975 AB - In GAO's survey of 24 federal agencies, the 18 agencies having high-impact systems identified cyber attacks from “nations” as the most serious and most frequently-occurring threat to the security of their systems. These agencies also noted that attacks delivered through e-mail were the most serious and frequent. During fiscal year 2014, 11 of the 18 agencies reported 2,267 incidents affecting their high-impact systems, with almost 500 of the incidents involving the installation of malicious code. ER -