Emma Best, founder of DDOS

Michael Duffy, associate director for capacity building in CISA’s cybersecurity division, says that global zero-day exploits are “really affecting the federal government networks.”

A new zero-day led to the largest distributed denial of service attack ever seen on the internet, according to a group of tech companies.

Anonymous Sudan appears to be affiliated with Killnet, a pro-Russian hacktivist persona that emerged in late 2021 or early 2022.

Attacks used to make websites and web services inaccessible are evolving and becoming more concerning, the company said Tuesday.

One attack appears to have shut down the president of Taiwan's website Tuesday before Nancy Pelosi's historic visit.

KillNet, the group that claimed responsibility, has launched a series of attacks around the world on perceived enemies of Russia.

Volunteer hacking efforts could unwittingly pull countries or private companies into a murky geopolitical mess, a researcher says.

U.S. authorities took down a related site in 2020.

The incident also coincided with Finland openly weighing NATO membership and the Finns saying a Russian aircraft violated their airspace.