2026-02-20T20:41:30.759Z / CNN政治新闻
[肖恩·林加斯]
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最后更新：2026年2月20日，美国东部时间下午4:05
发布时间：2026年2月20日，美国东部时间下午3:41
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密西西比州杰克逊市的密西西比大学医学中心外观，2018年5月2日拍摄。
罗赫利奥·V·索利斯/美联社/资料图
周五，一场勒索软件攻击迫使密西西比州最大的医疗保健系统之一关闭了全州的诊所，这引发了人们对全国医疗设施网络安全的更大担忧。
此次关闭影响了密西西比大学医学中心（UMMC）所有35家健康诊所，这些诊所为患者提供从癌症治疗到慢性疼痛管理等一系列医疗服务。攻击还导致择期手术被取消，卫生官员称这将是一场“持续数日的事件”。
由于无法接入平时用于记录患者信息的电子病历系统，UMMC的医生现在在治疗患者时使用纸和笔。该州联邦调查局（FBI）的一名高级官员表示，该局正在“从地方和全国范围内调动资源”应对此次攻击。
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数字系统中断和手术取消可能会给本已紧张的医疗系统带来压力。根据UMMC官网信息，该系统预算达20亿美元，占该州经济的2%。
急诊室仍在开放，且UMMC的医生已接受过在电脑故障时提供服务的培训。
“我们不知道这种情况会持续多久，”UMMC副校长卢安·伍德沃德（LouAnn Woodward）在周四的新闻发布会上表示，“作为预防措施，我们所有的IT系统都已关闭，在恢复运行之前将进行风险评估。”
此类破坏性勒索软件攻击在美国数百个医疗保健机构中并不陌生，近年来这些机构都曾遭受过攻击。其他勒索软件攻击曾威胁到患者安全，导致关键药物分发延迟，并给经济造成数十亿美元的总体损失。这类攻击通常涉及黑客锁定或窃取数据，然后向受害医院索要赎金。
截至周五，尚不清楚黑客是否提出了赎金要求。专家告诉CNN，由于医院高管面临让关键护理功能恢复运行的压力，医院通常容易受到黑客勒索。
熟悉联邦政府应对情况的消息人士告诉CNN，联邦调查局和卫生与公众服务部的官员自周四起一直在密切监测UMMC勒索软件攻击的影响。
“攻击者已经与我们取得联系，我们正在与当局和专家合作制定下一步措施，”伍德沃德向记者表示。
美国医院协会网络安全与风险全国顾问约翰·里吉（John Riggi）表示：“针对美国医院和医疗保健系统的勒索软件攻击正以令人担忧的速度持续增加。”
里吉在一般性发言中（而非专门针对密西西比州的黑客攻击）表示：“任何破坏或延误医疗服务的网络攻击都会对患者和社区安全构成风险，在农村地区尤其如此，因为最近的可用医院或创伤中心可能在100英里之外。”
美国医疗保健行业还普遍担忧，如果美国军方在未来几天对伊朗发动打击（特朗普总统下令的话），可能会引发伊朗方面的网络报复。
有专家告诉CNN，过去十年中，伊朗黑客与多起针对美国医疗机构的网络攻击有关联，网络安全专家正在为美国若发动打击后可能出现的黑客攻击增加做准备。目前尚无迹象表明此次密西西比州的攻击是伊朗所为。
“我们正在维持较高的威胁级别，并关注伊朗局势可能带来的影响，”一位专注于医疗保健领域的网络安全专家表示，他因未获授权接受媒体采访而要求匿名。
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Major cyberattack forces closure of clinics across Mississippi
2026-02-20T20:41:30.759Z / CNN Politics
[Sean Lyngaas]
Updated 2 hr ago
Updated Feb 20, 2026, 4:05 PM ET
PUBLISHED Feb 20, 2026, 3:41 PM ET
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The University of Mississippi Medical Center stands in Jackson, Mississippi, on May 2, 2018.
Rogelio V. Solis/AP/File
A ransomware attack has forced one of Mississippi’s largest health care systems to close clinics across the state on Friday, raising larger concerns about the cybersecurity of medical facilities across the country.
The closure affects all 35 of the University of Mississippi Medical Center’s health clinics, which provide a range of care to patients from cancer treatment to chronic-pain management. The attack also caused the cancelation of elective procedures in what health officials said would be a “multi-day event.”
Doctors at UMMC are now using pen and paper as they treat patients because they are cut off from the electronic health records system they normally use to draw up patient information. A top FBI official in the state said the bureau was “surging resources both locally and nationally” in response to the attack.
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The digital outage and cancellation of surgeries could strain a medical system whose $2 billion budget, according to its website, accounts for two percent of the state’s economy.
Emergency rooms remain open and UMMC doctors are drilled on delivering services when computers are down.
“We do not know how long this situation may last,” LouAnn Woodward, a vice chancellor at UMMC, said at a press conference Thursday. “As a precaution, all of our IT systems have been taken down, and risk assessment will be conducted before we bring things back up.”
A disruptive ransomware attack like this is familiar to hundreds of health care organizations across the US, which have suffered attacks in recent years. Other ransomware attacks have threatened patient safety, caused delays in crucial medication being distributed and cost the economy billions of dollars in aggregate. The attacks typically involve the hackers locking or stealing data and then demanding payment from victim hospitals.
It was unclear Friday if the hackers had made ransom demands. In general, hospitals can be vulnerable to extortion by hackers because of the pressure hospital executives face to get critical care functions back online, experts have toldCNN.
Officials from the FBI and the Department of Health and Human Services have been closely monitoring the UMMC ransomware attack’s impacts since Thursday, sources familiar with the federal response told CNN.
“The attackers have communicated to us and we’re working with the authorities and the specialists on next steps,” Woodward told reporters.
“Ransomware attacks targeting US hospitals and health care continue to increase at a very concerning rate,” said John Riggi, national advisor for cybersecurity and risk at the American Hospital Association.
“Any cyberattack which disrupts or delays health care delivery, poses a risk to patient and community safety,” Riggi said, speaking generally rather than on the Mississippi hack specifically. “This is especially so in rural areas where the next nearest available hospital or trauma center may be over 100 miles away.”
There is a broader concern in the US health care sector about potential blowback in cyberspace if the US military strikes Iran in the coming days, which has prepared to do if ordered by President Donald Trump.
Iranian hackers have been linked to numerous cyberattacks on US health organizations in the past decade, and cyber specialists are preparing for a possible uptick in hacks should the US strike, one expert told CNN. There is no indication that Iran is responsible for the attack in Mississippi.
“We are keeping an elevated threat level and watching this Iran situation for potential impacts,” said one cyber expert focused on health care who spoke on the condition of anonymity because they were not authorized to speak to the press.
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