How do fiber-optic cables transmit data?

The ________ program exploited security holes in the Unix operating system, infecting 10 percent of all computers connected to the Internet

Fill in the blank(s) with the appropriate word(s).

The act of attempting to prevent an unwanted action by threatening punishment or retaliation on the instigator if the act takes place is known as ___________.

Fill in the blank(s) with the appropriate word(s).