¿Dónde Aprender Hacking Ético?

BUSCO RECOMENDACIÓN
Quiero pagarme unos cursos sobre Hacking Ético, pero he encontrado muchas páginas así como diversos cursos, pero hay algunas buenas y malas reseñas de otros, entonces, si alguien a tomado cursos en alguno de estos, me podría decir si son buenos, malos y por qué, gracias
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Backtrack Academy
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RedTech Academy
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EC - Council
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KeepCoding
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Platzi
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The Security Sentinel
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Treeknow
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WhiteSuit Hacking
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Academia Eset
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Comunix Group
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Coursera
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Cybrary
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Pentester Academy
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Udacity
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Udemy
En Udemy, Udacity, Platzi, etc, tienen varios cursos, si es que hay alguno muy bueno que recomienden, se los agradecería

Hola amigo, mi experiencia con EC Council y Udemy fue bastante buena.
Puedo dar fe que al menos en esas dos plataformas puedes encontrar muy buen material, considerando un costo claramente.

Revisa igual ISACA, también te puede servir.

Saludos!