The already-long problem on hacking and other security-related cases necessitates for the application builders to check the data received from unknown sources. To further strengthen the security, even data received from known sources also need to be check as these may also contain harmful viruses creating critical problem to the application.
Answer:
The left and right index finger
Explanation:
Left index finger: R, T, F, G, C, V
Right index finger: Y, U, H, J, B, N
Thesaurus is a tool use to find the synonym of the of a word.
Here's the way to use the thesaurus in the word processor.
=> highlight the word, then right-click, Navigate to synonyms and the words will display.