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Belgium’s Federal Public Service Interior (i.e., the country’s Interior Ministry) has suffered a “complex, sophisticated and targeted cyberattack.” What happened? When Microsoft released out-of-band security updates for Exchange Server in early March to fix zero-day vulnerabilities exploited by the Hafnium threat actor, the FBS Interior called in the Center for Cybersecurity Belgium (CCB) to help with the patching of their Exchange servers. While doing that, the CCB also carried out more extensive monitoring and “found … More
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