After Russia targeted the 2016 presidential election, U.S. government authorities repeatedly warned about the prospects of foreign interference in and influence on the 2020 election. Throughout the fall of 2020, government officials and private companies took a number of actions to address threats to the election, including issuing public warnings, imposing sanctions, and taking down foreign government-linked accounts. In a declassified report released in March 2021, the intelligence community concluded that although Russia and Iran carried out influence operations to affect the election, there are “no indications that any foreign actor attempted to alter any technical aspect of the voting process in the 2020 US elections, including voter registration, casting ballots, vote tabulation, or reporting results.” In December 2020, however, U.S. cybersecurity firm FireEye disclosed that it suffered a breach by a nation-state sponsored actor, and numerous U.S. government agencies soon revealed that they too had been breached in intrusions widely attributed to Russia.

中文翻译：

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政府机构和私营公司采取行动限制外国影响和干预对 2020 年美国大选的影响

俄罗斯瞄准2016年总统大选后，美国政府当局多次警告外国干预和影响2020年大选的前景。整个 2020 年秋季，政府官员和私营公司采取了一系列行动来应对选举面临的威胁，包括发布公开警告、实施制裁和关闭与政府相关的外国账户。在 2021 年 3 月发布的一份解密报告中，情报界得出的结论是，尽管俄罗斯和伊朗开展了影响行动以影响选举，但“没有迹象表明任何外国行为者试图改变 2020 年美国投票过程的任何技术方面选举，包括选民登记、投票、投票制表或报告结果。” 然而，在 2020 年 12 月，美国