“Where should I start? Can you guide me? What resources can you recommend me?” I get this asked a lot. TLDR: I don’t know. I genuinely don’t know. Before I tell you my thoughts I have to mention
that I’m young.

I have very limited exposure to the industry,
I have not had different jobs in this field. And so I really don’t know how to transition
from another job into it. What certifications to get, how to balance
a full-time job and a family.

Anything country-specific. I really can’t help you with that because
I have 0 experience. All I can look at is my life and tell you
my thoughts about it. If you disagree with what I will say, or it
doesn’t help you, then you need to ask somebody

else. I don’t have the answer. But I think there are a lot of misconceptions
about how to get into the security field. And I try to explain now why. Maybe you think there is some kind of shortcut. Or at least a very efficient path.

You hope a professional or experienced person
can easily tell you about a clear path to success. I certainly had exactly those thoughts several
years ago. I got frustrated why nobody would write down
a clear guide. I felt somewhat entitled that I have good
experience already, I just need some guidance

or mentoring. But the truth is: there is no efficient path
Truth is: it just takes years of experience. So if you think that somehow it would be easier
with a study plan, it’s not. So forget it. I’m sure you know this interview question:
“what advice would you give your younger

self?” And for me, I don’t know. While certainly thinking differently at the
time, in retrospect, I don’t think there was anything bad or inefficient about the
path I took. Of course I could help my younger self understand
certain concepts better and faster, and that’s

what I try to do with the videos, the videos
cover exactly what I would tell my past self, but I couldn’t lay out a path of do X, Y,
Z. There is no secret step-by-step guide! It’s not a straight path, but a web of interconnected
topics, layers and dependencies and you are

free to walk and jump between stuff however
you want. Truth is: anything you do. Any tutorial you follow. Any project you start and never finish. Any dead-end you head down. It’s not wasted. It’s all experience that is accumulating
over time.

If I learned anything about hacking. What it means, what it is, then at least to
me, it’s not really something I can get a hold on. It’s an abstract artistic and broad term
for many different things. Truth is: Hacking is just learning IT stuff,
but kinda in an artistic weird creative way.

Maybe now you say, well tell us about your
path then? Clearly it got me somewhere right, maybe that’s
the ultimate guide. While there are a few things I can mention,
my path is also full of just luck. Opportunities I have never planned for.

So it’s also somewhat not applicable to
anybody else. Nevertheless, here are a few checkpoints that
maybe give you some idea. As a kid I started with some HTML
Then I got a book about Visual Basic Script. And I wanted to write an operating system
in it.

If you have ever written Visual Basic Script, it’s a bit like Javascript, so you know how ridiculous that idea was. But that didn’t hold me back, I asked this question in a forum and was called a dumb TROLL. I was really sad that day, because I was just a kid trying to learn something and I had

no idea what it means to have an OS. Anyway, at some point I got into web programming with php. So I had to learn actual HTML, CSS, javascript, php and mysql. I started and abandoned several browser games projects.

Then I heard about SQL injection and did a school project on it. Here, I wrote a test application and explained how injections work. I started to learn java and got into android app programming. Did some C++ and a bit of game programming.

Made a shitty monopoly clone. Then I did some Google Wave gadgets, does anybody remember that? I was just a dumb kid and my code was ugly but my poll gadget got some attention from professionals. That was cool. I learned more computer science fundamentals in university.

Data structures and algorithms. Learned about Linux because I started to use it at work. Joined a hackerspace and learned about Arduinos and soldering. And then I guess the major turning point, I discovered my first CTF, the Stripe CTF,

got hooked on wargames and other challenge sites. And essentially here I am now. And now I’m a freelancer doing security code audits, pentesting, application security and that kind of stuff. And please don’t ask me how to get into freelancing. I have no clue how to do it.

I met a guy, who knew a guy, who recommended
me, and here I am. So that was not planned at all. And looking at my history, imagine that these
are just large checkpoints. It's not on a straight path.

It's traversing through a jungle of different
topics. It's kind of like a fractal or the coastline
paradox, if you zoom in, you uncover even more complex lines. There is a lot of stuff I did not mention
in this high-level view.

Like making RPG Maker games, where I was first
exposed to if-else logic blocks. Or modding my calculator with a window and
LEDs. One of my first exposures to electronics. If you ask me where to start, where should
I point you to?

Is the start the first HTML line written as a
young kid? Or is the start when I had already years of
programming experience and discovered CTFs? I have no answer for you, you have to figure
that out yourself.

But one truth is, I didn't discover any
secrets. There is no anonymous secret hacker organization
with forbidden knowledge. I simply apply the knowledge that I gained
about computers over the years. You know, programmers use the same knowledge
but just think differently.

They think: "How can I make it work?"
And a hacker thinks: "How should you implement it, so that it's secure, and what could
a lazy programmer do wrong?" Truth is: the more you understand how something
is built, you can also think about how it

could break
So I’d say 95% of what I’m doing is just learning about how computers work. And by that I mean learning a ton of different
programming languages, frameworks, concepts, and so forth. Over the years I gained a very good broad
basic understanding from low-level logic gates, 

over simple circuits, to PCBs and chips, microcontrollers,
low-level programming, assembler, C, firmware, operating systems, higher-level languages,
language and programming concepts, data structures, file structures, 3D programming, networking,
cryptography, servers, server administration, 

websites, frameworks, databases, web apps,
mobile apps, math, machine learning, the list is endless. And you see, nothing on this list screams
“hacking” or “security”. Because this knowledge is just the base requirement,
the tool that I use to do my job as a “professional 

hacker”. Like I said, it’s not secret knowledge. It’s everything a programmer, sysadmin or
whoever would learn, just applied a bit differently. So I’m thinking: “what could go wrong. How can files be exposed. 

How could I gain access without a password. How could I modify something that shouldn’t be
modifiable, how can I manipulate the output” and so forth. And maybe it’s surprising to you, but that’s
not different from what a programmer or IT 

architect would do. They use the exact same technology just have
different thinking patterns. Different problems they try to solve: So they
think “how could I use these things to build a social network, how could I build a time-lapse
camera, how could I make a fun game”. 

Different problems, different goals, but based
on the same knowledge. And the security focused stuff, like conference
talks, CTF writeups, trainings, academic papers, blog posts, are essentially just sharing cool
ideas how to apply this knowledge in a security

focused way. And that is not different to a programmer
sharing techniques on how to handle huge datasets efficiently, or how to implement a game AI. Don’t think of hacking as anything crazy
or special. It is based on exactly the same thing just
with a bit different angle.

Breaking, not building. So to summarise: hacking requires a lot of
knowledge about computers. And I say generic computers, because it could
literally mean anything IT related. And learning a wide variety of technologies
and gaining experience and knowledge to draw

from, just takes time. It takes years. So any game you develop, any Minecraft redstone
circuits you build, any boring sorting algorithm, any math class, any mobile app you start and
abandon, anything you do is knowledge you

accumulate and eventually can use. So one general advice I give is, it takes
a lot of time, so make sure you have fun! Enjoy learning about computers. Enjoy programming. Enjoy following tutorials. Enjoy learning a new language. Whatever it is that you have fun with, it
will keep you motivated over the years.

Don’t get me wrong. You don’t have to first program for years
and then get into security. You can do it in parallel. When you write an Android app, look into the
official Android security tips. Think about what could go wrong.

What happens if you don’t follow it. Play around with that. Maybe at some point you want to build a web
api to be used by the app, and suddenly you learn web development and server administration. Then you have to debug your connection, you
look into web proxies and how that can be used

to analyze and test stuff. This is essentially the process you will be
doing for the next few years. And that’s what I do all the time. You know the thought of being able to hack
an iPhone, a gaming console or banking terminal

is motivating, but good chance is that you
are just very, very far away from that. I’m at least not there yet. I failed with my Nintendo Switch hack attempt. I barely understood the surface. But that’s fine, I keep learning.

And I have a ton of fun with learning basics
and learning a new programming language and learning new technologies. And in a few years, in two more console generations,
maybe I know enough to join one of those teams. I know you might still feel frustrated, where
to start.

But if you feel frustrated, then that’s
probably because you picked a target way too large for you. If you don’t know the steps you need to
take, it’s too far away to see how to get there. So try to break that goal up.

For example, if you want to get into bug bounties
and you have no clue how to do that. Analyze it. Sit down and try to uncover the underlying
topics. For example, bug bounties are usually web security. Web security means hacking websites.

Websites can be written in a ton of different
languages. So start with one, learn PHP, learn what can
go wrong with PHP. Learn about different PHP frameworks. Learn about different databases. And with “learn about” I mean, write your
own test websites, use the frameworks, just

play around with it and gain experience. When you get bored with PHP, look into Python. Learn about Python Flask and Django. What can go wrong with Python websites? What can go wrong with Ruby websites. Do you see how the typical Ruby, Python and
PHP web security issues are super different,

because they are different languages? Learn about JavaScript, learn about HTML and
then try to understand what XSS means. You see how that single topic just immediately
exploded into so many subcategories, and here you have a list of stuff you can spend years
on.

And it’s not a step-by-step path. It’s a collection of topics and you basically
jump around between them, and slowly understand them deeper and better. Over the years I have revisited the security
of PHP websites and I always learn a bit more.

And you can even go so deep to look into the
actual PHP C source code. So this is what you have to do. Break it up, try to understand the layers
that build up whatever you want to do, and learn these layers.

It’s a bit of research, but that’s part
of it. And another thing I want to make clear, you
won’t find these things when searching for “hacking tutorials”. That’s something I had to learn. Truth is: most resources hackers use are regular
documentation and programming resources.

Hacking tutorials, like what I show you in
videos, are just showing you how to apply that stuff to security. You don't need to rely on me or any other
person to write it up for you, you can do it yourself.

In many, many videos, I'm not referencing
any secret hacking book. I just simply open the official AVR assembler reference, or look
into the PHP function documentation, or look at the official Linux manual pages. So let me summarize:
No! There is no clear, easy path to learn this
stuff and I can't help you.

There is no secret book or website to learn
it. The more you understand computers, the more
ideas and understanding you have about what can go wrong. Programming, abstract theory, and so forth
is important to understand computers. And just have fun. If making games sounds fun, make games.

It takes years to accumulate this knowledge,
so make sure you enjoy the ride. And one last thing I want to say. I make the videos in a way I would have loved
to watch them some years ago. Which means I already had experience with
programming.

So I guess my channel is not intended for
complete programming beginners, but I still hope that what I just described helps you
to get somehow started. And if you have some experience, just keep
watching my videos and take them as inspiration

to look deeper or into different topics. You absolutely don't have to understand
everything, but catching one thought, or seeing one tool I use, can be all the difference. And I hope the videos at least give you a
rough idea how stuff works, and you can research

it once you actually need it. If you want some more guidance, you can also
check out my playlists. I have a fairly long binary exploitation playlist,
mostly based on exploit-exercises.com. But I also have some web security videos. Or just my CTF write-ups.

Like I said, it's not a clear path so just
keep jumping between topics and just have fun. Look into stuff, get frustrated, and then
look into other stuff. And otherwise, maybe look at overthewire,
picoCTF, ctftime.org, try out some bug bounties

or just look at other programming YouTube
channels and learn about something new. Make sure to check the description for links
to stuff I can recommend. Anyway, always try to learn something new. And trust me, if you just stay curious and
keep looking into many different new things,

in a few years, you will totally get there. Be patient.

The Secret step-by-step Guide to learn Hacking

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사이버 보안의 핵심 지식과 기술

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연사는 자신의 업무가 프로그래머나 IT 설계자와 비슷한 사고방식으로 시스템이 어떻게 고장날 수 있는지 분석하는 일이라고 설명합니다.

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The Secret step-by-step Guide to learn Hacking

The Secret step-by-step Guide to learn Hacking

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