The fix follows allegations from a Russian intelligence service that an intentional flaw in iPhones provided a gateway for American espionage.

The Cybersecurity and Infrastructure Security Agency said it's working with "several federal agencies" affected by a flaw in the file transfer software.

Dubbed "Cadet Blizzard," the hacking group carried out operations targeting Ukrainian infrastructure in the run-up to the Russian invasion.

CISA and the FBI offered details to help organizations protect themselves against the group that has claimed hundreds of victims.

Chris Krebs said he expects to see Russia, China and Iran — and even domestic groups — attempt to influence and disrupt the presidential race.

The highly anticipated strategy is the first since 2018 and follows the release of the National Cybersecurity Strategy in March.

The code designed to target industrial control systems joins the pantheon of dangerous malware that can cause cyber-physical harm.

The sophisticated hacking effort is the latest in a long line of financially motivated malware campaigns emanating from Brazil.