India's leading IT companies TCS (Tata Consultancy Services) & Tech Mahindra is also not Secure ! 
Here are some proofs submitted to THN : The Hacker News by a Indian hacker - THE_DREAM_BOY , as shown below , which can easily prove that , YES ! India's leading IT companies TCS (Tata Consultancy Services) & Tech Mahindra is also not Secure ! Have a look :-

1.) XSS Attack on Tech Mahindra's Website : http://www.techmahindra.com/
2.) TCS (Tata Consultancy Services) :  Information Disclosure of Server private IP Address and oracle DB infohttp://www.tcs.com/



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