Ethical hacking provides security benefits to banks and financial institutions by preventing website defacement through evolving techniques that think like criminals. However, it depends on trustworthy ethical hackers who can be expensive to hire professionally.

19. Advantages
 Provides security to banking and financial
establishments
 Prevents website defacements
 An evolving technique
 To catch a thief you have to think like a thief
Disadvantages
 All depends upon the trustworthiness of the
ethical hacker
 Hiring professionals is expensive.

23. It is clear from the graph it is increasing day by
day.