What are the advantages of Invisible Ink and what are the disadvantages, according to our thinking, how can we avoid this thing

 

     Invisible ink: written by            advertising agency.

Invisible ink (advertisement)

July,2/07/2021

- Written by officer in a security agency.

  

Good evening, as we all know that invisible ink is increasing the crime . Now a day it is making so many people fools. Take this as an example and learn how they are making others fool.

A few days ago I man came to a old man as a agent of insurance company. And inspired him to signed the papers. The old man read the papers carefully and signed the papers. After somedays a another man came in his house , and introduced himself as a staff of a insurance company. He told that he came here to take the house papers. Then old man got to know that the first man fooled him by using the invisible ink .

We should learn by this case and be aware this invisible ink.