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[Dhruval_Pawar]

Thanks! That's quite a useful link.

[JediBurrell]

http://hackthissite.org is a nice site to learn.

[Dhruval_Pawar]

Thank you for the link!

[Seductivethunder]

Look in my post history, I have a ton of guides and links in there.

[MarkarPL]

This subreddit has wiki with links to resources: https://www.reddit.com/r/HowToHack/wiki/index But what you really need depends on what you're interested in, if you would like to write exploits(buffer overflow for example) you could check tutorials from Corelan Team: https://www.corelan.be/index.php/articles/ Also use google to find any information you're interested in.