Internet

The Internet was a global network of computers. It uses the standardized Internet Protocol Suite to regulate communications.

CTU
The Counter Terrorist Unit has an Internet Protocol Manager.

Day 4
During Day 4, Andrew Paige discovered a hidden code in the Internet. The code compromised several servers while the execution of James Heller was transmitted online, allowing terrorists to use the Dobson Override to take control of nuclear plants around the country.

Day 7
During Day 7, Benjamin Juma invaded the White House taking President Allison Taylor hostage. Juma set up an Internet transmission and forced Taylor to read a statement that was transmitted online. The transmission was relayed through several web servers.