diff --git a/guide/english/security/penetration-testing/index.md b/guide/english/security/penetration-testing/index.md
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 title: Penetration Testing
 ---
 
-Penetration Testing is a method that many companies follow in order to minimize their security breaches. This is a controlled way of hiring a professional who will try to hack your system and show you the loopholes that how you should fix. Penetration testing can occasionally bring down systems, and cause the company to lose uptime, it's best practice to penetration test on a pre-production version of the production enviroment.
+Penetration Testing is a method that many companies follow in order to minimize their security breaches. This is a controlled way of hiring a professional who will try to hack your system and show you the loopholes that you should fix. Penetration testing can occasionally bring down systems, and cause the company to lose uptime, it's best practice to penetration test on a pre-production version of the production enviroment.
 
 Before doing a penetration test, it is mandatory to have an agreement that will explicitly mention the following parameters −