Hackers are highly technical people who secretly break into computers to steal important data or sometimes to destroy it. Hackers not only steal the important data but also hack applications and websites to change the program logics. Hackers usually tamper with data for unethical purpose, just for obsession to break system securities. Although hacking is done for without any consent from the user, but it is not always destructive. Hacking which is done for a good cause such as national security etc. is known as Ethical hacking. Ankit Fadia is a well known ethical hacker from india.
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