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

"If they succeed this will probably be one of the most important cybersecurity improvements this decade," one security researcher said.

It's a critique of the coding practices of the designers of billions of so-called IoT devices.

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.