The fallout could be worse than the Hafnium attacks in March.

Microsoft's announcement about Exchange Server vulnerabilities prompted the FPS Interior investigation.

“The cost of the continuing status quo is simply unacceptable," a senior Biden administration official said.

It’s the third time in a month that U.S. officials have published information on hacking techniques allegedly used by the SVR.

The botnet was active just days after the Exchange Server vulnerabilities were announced.

It's the latest supply chain attack to emerge.

The hackers are after Monero.

It's one of the most aggressive actions taken yet by U.S. government or corporate officials to combat the Exchange Server vulnerabilities.

The news comes at a time of heightened concern over bugs in Exchange Server.

The money would allow the Cybersecurity and Infrastructure Security Agency to improve its defensive tools and hire more experts, officials said.