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刚刚做出来一道难题,马赛克:二维码被打码模糊,百度搜索如何对图片进行反模糊操作,搜到photoshop的锐化功能,下载安装photoshop,用锐化工具涂抹被打码的部分,然后扫描二维码得到flag



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刚刚做出来一道难题,马赛克:二维码被打码模糊,百度搜索如何对图片进行反模糊操作,搜到photoshop的锐化功能,下载安装photoshop,用锐化工具涂抹被打码的部分,然后扫描二维码得到flag

BY Hackergame 2021 solution解题过程记录


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Right now the digital security needs of Russians and Ukrainians are very different, and they lead to very different caveats about how to mitigate the risks associated with using Telegram. For Ukrainians in Ukraine, whose physical safety is at risk because they are in a war zone, digital security is probably not their highest priority. They may value access to news and communication with their loved ones over making sure that all of their communications are encrypted in such a manner that they are indecipherable to Telegram, its employees, or governments with court orders. During the operations, Sebi officials seized various records and documents, including 34 mobile phones, six laptops, four desktops, four tablets, two hard drive disks and one pen drive from the custody of these persons. Telegram users are able to send files of any type up to 2GB each and access them from any device, with no limit on cloud storage, which has made downloading files more popular on the platform. Since January 2022, the SC has received a total of 47 complaints and enquiries on illegal investment schemes promoted through Telegram. These fraudulent schemes offer non-existent investment opportunities, promising very attractive and risk-free returns within a short span of time. They commonly offer unrealistic returns of as high as 1,000% within 24 hours or even within a few hours. "The inflation fire was already hot and now with war-driven inflation added to the mix, it will grow even hotter, setting off a scramble by the world’s central banks to pull back their stimulus earlier than expected," Chris Rupkey, chief economist at FWDBONDS, wrote in an email. "A spike in inflation rates has preceded economic recessions historically and this time prices have soared to levels that once again pose a threat to growth."
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Telegram Hackergame 2021 solution解题过程记录
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