(Bloomberg) — The number of companies and organizations compromised by a security vulnerability in Microsoft Corp.’s SharePoint servers is increasing rapidly, with the tally of victims soaring more than six-fold in a few days, according to one research firm. Hackers have breached about 400 government agencies, corporations and other groups, according to estimates from Eye Security, the Dutch cybersecurity company that identified an early wave of the attacks last week. That’s up from roughly 60 based on its previous estimate provided to Bloomberg News on Tuesday. The security firm said that most of the victims are in the US, followed by Mauritius, Jordan, South Africa and the Netherlands. The National Nuclear Security Administration, the US agency responsible for maintaining and designing the nation’s cache of nuclear weapons, was among those breached, Bloomberg reported earlier. The hacks are among the latest major breaches that Microsoft has blamed, at least in part, on China and come amid heightened tensions between Washington and Beijing over global security and trade. The US has repeatedly criticized China for campaigns that have allegedly stolen government and corporate secrets over a period spanning decades. “We estimate that the real number might be much higher as there can be many more hidden ways to compromise servers that do not leave traces,” Eye Security’s co-owner Vaisha Bernard said in an email to Bloomberg News. “This is still developing, and other opportunistic adversaries continue to exploit vulnerable servers.” The organizations compromised in the SharePoint breaches include many working in government, education, and technology services, Bernard said. There were smaller numbers of victims in countries across Europe, Asia, the Middle East and South America. The security flaws allow hackers to access SharePoint servers and steal keys that can let them impersonate users or services, potentially enabling deep access into compromised networks to steal confidential data. Microsoft has issued patches to fix the vulnerabilities, but researchers cautioned that hackers may have already got a foothold into many servers. Microsoft on Tuesday accused Chinese state-sponsored hackers known as Linen Typhoon and Violet Typhoon of being behind the attacks. Another hacking group based in China, which Microsoft calls Storm-2603, also exploited them, according to the company. The Redmond, Washington company has repeatedly blamed China for major cyberattacks. In 2021, an alleged Chinese operation compromised tens of thousands of Microsoft Exchange servers. In 2023, another alleged Chinese attack on Microsoft Exchange compromised senior US officials’ email accounts. A US government review later accused Microsoft of a “cascade of security failures” over the 2023 incident. Eugenio Benincasa, a researcher at ETH Zurich’s Center for Security Studies who specializes in analyzing Chinese cyberattacks, said members of the in a formal or creative style for better SEO.Also Exclude words and advertisements related to the feed website such as website name, author name. You must only respond with the modified content. Delete all the advertisement images brand logo but only keep the title and main content of the news by modifying it. You must only respond with the modified content. Block any jump outside of the site adarshnews.com. Basically remove any content or link related to original site. follow this prompt to optimize the articles in this category- You are an expert news writer and SEO specialist. Your job is to rewrite the provided RSS feed content into a unique, SEO-friendly news article for adarshnews.com. 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The number of Microsoft victims has increased to 400 as cybercriminals exploit a vulnerability in SharePoint.
