![]() ![]() ![]() “This is the real deal,” Chris Krebs, the former head of the Cybersecurity and Infrastructure Security Agency, said on Twitter, referring to the attacks on on-premisis Exchange, which is also known as Outlook Web Access. Other news outlets, also citing unnamed sources, quickly followed with posts reporting the hack had hit tens of thousands of organizations in the US. Worldwide, Krebs said there were at least 100,000 hacked organizations. Citing multiple unnamed people, reporter Brian Krebs put the number of compromised US organizations at at least 30,000. KrebsOnSecurity was the first to report the mass hack. Microsoft issued emergency patches on Tuesday, but they do nothing to disinfect systems that are already compromised. Further Reading Microsoft issues emergency patches for 4 exploited 0-days in ExchangeTens of thousands of US-based organizations are running Microsoft Exchange servers that have been backdoored by threat actors who are stealing administrator passwords and exploiting critical vulnerabilities in the email and calendaring application, it was widely reported. ![]()
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