Cybersecurity

Cybersecurity has a misleading front door: many courses open with attack tools and leave for later the networks, systems and code those tools exploit. We look at it from the side of the people who build software. At TintoDev we review authentication, permissions and dependencies on every project, and most of the problems we find are not sophisticated attacks but well-known mistakes: badly stored passwords, endpoints without access control, secrets committed to the repository. That is why this selection prioritises networking fundamentals, web application security following OWASP guidance, and a defensive mindset. We include ethical hacking, always practised in your own labs or on authorised platforms: testing techniques against someone else's systems without permission is illegal, even if it is “just to learn”. We look for up-to-date courses with hands-on labs, and combine options in Spanish with the reference courses in English.

Who it is for

• Developers tired of finding out about vulnerabilities in their code from an outside report.
• People in support, networking or sysadmin roles who want to move into security.
• Beginners who need a path that does not start with tools they do not understand yet.
• Small teams without a dedicated security person who need to cover the basics.

What you will learn

• Networking: TCP/IP, DNS, HTTP and TLS, because almost every attack goes through them.
• Linux and the command line, where most security tooling lives.
• Web application security with the OWASP Top 10: injection, broken access control and authentication failures.
• Ethical hacking and penetration testing in your own labs or on authorised platforms.
• Defence: logging, monitoring, patch management and incident response.
• The groundwork for entry-level certifications such as CompTIA Security+.

Recommended order

1. Networking and Linux before any security tool. Without that base, scanners only produce noise.
2. Security fundamentals and web security with OWASP, which is what you will apply most day to day.
3. Ethical hacking in authorised labs, to understand how a real attack is chained together.
4. An entry-level certification at the end, when it helps structure what you have already practised.

Zero to Hero: Complete Cybersecurity Bootcamp 2025 Part :1

Zero to Hero: Complete Cybersecurity Bootcamp Part 1 is a short English-language introduction to cybersecurity, focused on networking and the Linux terminal. We would recommend it as a first contact of a couple of hours to find out whether the field interests you, not as complete training.

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Curso Completo de Hacking Ético - Aprende Todo - 2026

Curso Completo de Hacking Ético is a hands-on Spanish-language option for working through the phases of a penetration test with Kali Linux. We would recommend it to people who have already decided they are interested in offensive security and learn better by doing than by reading theory.

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Aprende ciberseguridad desde cero para trabajar en 2026

Aprende ciberseguridad desde cero is a broad Spanish-language introduction for people who want to understand the field and decide which role to aim for. We would recommend it as an initial map, because besides attacks and defenses it spends time on professional roles, certifications and interview preparation.

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Frequently asked questions

Where do I start in cybersecurity?

With networking and Linux, before any hacking tools. If you understand how TCP/IP, DNS and HTTP work and you are at ease in a terminal, every security technique that follows makes sense instead of being a recipe. Then move on to web security and OWASP.

Is it legal to learn ethical hacking?

Yes, learning and practising ethical hacking is legal as long as you do it on your own systems or with written authorisation from the owner. You can practise in labs on your own machine, intentionally vulnerable virtual machines and platforms built for that purpose. Testing techniques against other people's systems without permission is illegal, even if the intent is to learn.

Do I need to know how to code to work in cybersecurity?

Not to get started, but yes to grow. Many entry-level roles, such as security operations centre analyst, lean more on networking and systems than on code. For application security, automating tasks or really understanding a vulnerability, basic Python and Bash make a clear difference.

Which cybersecurity certification should I get first?

A broad entry-level one, such as CompTIA Security+, before one focused on penetration testing. It structures the fundamentals and hiring managers know it. The more demanding offensive certifications make sense later, once you have spent time in labs.

Are there cybersecurity courses in Spanish?

Yes: the catalogue mixes courses in Spanish and English, and each course page shows its language. For fundamentals and ethical hacking there is a good range in Spanish; the most complete material for international certifications is usually in English.