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Researcher: National Emergency Alert System is Easy To Exploit_我的网站

一 |     女童的左脚卡在脚踏车的车架和后轮之间的空隙。

二 | （取自网络）女佣到幼儿园接女童，怎知骑脚踏车回家途中，女童左脚不知何故卡在脚踏车后轮，痛得她大哭，惊动警察和民防人员到场。这起事故发生在星期三（8月21日）下午近3时，地点在大巴窑中路第79A座组屋一带。署名“狮城学姐小鱼”的网友在小红书贴文说，当天经过事发地点，看到一群人围着一名女童。

三 | 网友走近一看，才发现女童的左脚卡在脚踏车的车架和后轮之间的空隙。

四 |     The Department of Homeland Security is telling state and local governments to update software and beef up security around devices connected to the nationwide Emergency Alert System (EAS). The recommendation comes days after security researcher Ken Pyle revealed vulnerabilities in devices used by officials to encode EAS alerts.,Pyle told KerbsOnSecurity that he first discovered the vulnerabilities in 2019 after buying old EAS equipment on eBay. He quickly found the vulnerabilities and alerted the FBI, DHS, and the manufacturer of the devices. Pyle decided to give the manufacturer and government time to address the issue before going public.,DHS Inspector General Overseeing Jan.6 Secret Service Probe Previously Misled Investigators: Report4 August, 12:27 GMT,He started to worry after the Jan 6, 2021 riot at the US Capitol, fearing that the vulnerabilities could be used “to start a civil war.”,That is because despite a patch being issued in 2019, many of the devices have not been updated either because they are too old for the new firmware or because of simple neglect by the operators. Pyle also says that many operators do not perform basic security measures recommended by the manufacturer, like changing the default password and putting the devices behind a firewall.,This is a problem because of the way EAS messages are distributed. There is no central authority and the process is automated in most cases. This means that someone could issue an alert locally and as long as it is accepted as a real EAS alert, it could spread nationwide.,“These devices are designed such that someone locally can issue an alert, but there’s no central control over whether I am the one person who can send or whatever,” Pyle told KerbsOnSecurity. “If you are a local operator, you can send out nationwide alerts. That’s how easy it is to do this.”,One device obtained by Pyle was a non-functional EAS device, purchased from an electronics recycling company. While the device no longer operated, the person who discarded it and the recycling company neglected to wipe the hard drive, giving Pyle access to cryptographic keys allowing him to broadcast messages on Comcast’s network, the third largest cable company in the US.,Comcast told KerbsOnSecurity in a statement that the EAS was lost by a third-party shipper and that the keys and credentials found on the device will no longer work on their system. They also thanked Pyle for his research and for informing them about the issue.,EAS vulnerabilities have been exploited in the past. In 2013, someone hacked the EAS networks in Great Falls, Montana, and Marquette, Michigan, using their access to issue an alert saying that zombies are rising from their graves. That same prank was repeated in Indiana in 2017. There have been other incidents, though they did not include zombies.。女童穿着幼儿园的制服，看上去约四五岁。

五 | 根据网友的说法，女童当时放学后，女佣前来接她。网友指女童痛得撕心裂肺地叫出来，听了令人心疼。“提醒各位宝妈宝爸们，接送孩子时如果是骑脚踏车，一定要安全第一，确保孩子的脚放在正确的位置。家有女佣的，一定要交代好安全问题！”根据在场民众的留言，警员与救护人员先后到场，好在民防人员抵达后，成功让女童脱困。记者星期六（24日）走访现场，公众指出，女童是附近幼儿园的学生。新加坡民防部队受询时说，星期三下午2时50分接到求助通知，救出一名脚部困在脚踏车后轮的人。

六 | 民防人员之后将那人送往竹脚妇幼医院。

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Published on:21:00:33