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Reverse Engineering: -
1. https://www.youtube.com/watch?v=a2EkORFcSZo
2. https://www.youtube.com/watch?v=cATBah30jk0
Web Application : -
1. https://www.youtube.com/watch?v=yuiWAoeIIs0
1. Burp
1. https://www.youtube.com/channel/UCq_h2sGrbWA2JzJ1HjDMXcQ
2. https://vimeo.com/album/3510171
3. https://www.youtube.com/watch?v=pBkzvp7xuCI
4. http://www.irongeek.com/i.php?page=videos/web-pen-testing-workshop
5. https://www.youtube.com/watch?v=rNkR1Joz4eU&t=427s
2. ZAP
1. https://www.youtube.com/watch?v=_MmDWenz-6U
2. https://www.youtube.com/watch?v=dqKGGCVFTvI&list=PLAeGLKLY7GO_UMT4-7attknJ8X8JGPzLc
3. OWASP 2017
1. https://www.youtube.com/watch?v=avFR_Af0KGk
2. https://www.youtube.com/watch?v=2p6twRRXK_o&t=1779s
Mobile Application :-
1. https://www.youtube.com/watch?v=EvkdysIM9Ns
2. https://www.youtube.com/watch?v=bT1-7ZkSdNY
3. https://www.youtube.com/watch?v=D2VpMqRLnSE
Source code :-
1. https://www.youtube.com/watch?v=AGXSjFEraQU
2. https://www.youtube.com/watch?v=wloYqSjVcp0
3. https://www.youtube.com/watch?v=L1c4MfSvw18
4. https://www.youtube.com/watch?v=0_F47yU3krU
Infra :-
1. https://www.youtube.com/watch?v=GX1go9PDnWY
VoIP :-
1. http://webattacklab.blogspot.in/2017/06/viproy-voip-penetration-testing-and.html
Priv Escalation
1. https://blog.g0tmi1k.com/2011/08/basic-linux-privilege-escalation/