The Biden administration has urged users of Microsoft's Exchange mail and messaging server to ensure they have not fallen victim to the recently-detected "Hafnium" attack on Exchange Server that Microsoft says originated in China.
Microsoft revealed the attack last week and released Exchange security updates.
The Biden administration’s Cybersecurity and Infrastructure Security Agency (CISA) followed up with a March 5 general advisory encouraging upgrades to on-premises Exchange environments. Another advisory on 6 March upped the ante as follows:
White House National Security advisor Jake Sullivan weighed in too, on his Twitter account:
We are closely tracking Microsoft’s emer ..
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