Question

only a small fraction of the information flowing around the world is securely encrypted, and the remainder is poorly encrypted, or not encrypted at all. —the code book, simon singh. based on the -ly ending and clues in the sentence, what is the meaning of securely? done to keep safe from attack a process that helps people related to computers

Explanation:

The -ly ending makes "securely" an adverb. In the context of information being encrypted, "securely" implies protection from attack. The other options don't fit as well; the focus is on safety from attack, not just being a helpful process or being related to computers specifically.

Answer:

done to keep safe from attack