Hello, I would like to learn about computer security and I don't know where to start. What do I have to learn first? What programming languages ​​are necessary to know? Where can I learn? My language is Spanish, thanks

Hello, I'm an experienced Electronic engineer with a decent amount of programming experience, about 7 years i have worked in security from wiring to installations and now cyber security.
my recommendation is to look at something like codeacademy.org or a similar .io teaching platform to get you comfortable with coding and the basics it will also allow you to network and get advice from others in that field.

Likewise, I'm a Senior Security Operations Analyst.
>>2 are good sites to start for coding.

For more specific learning on cybersecurity, TryHackMe is a good place to start (do free rooms first, then decide if you want to subscribe for more content for around $10/month).

Basic tip not to catch viruses, do not connect to the network.

Honestly, the biggest thing about learning security is...find something you want to know more about. Then dive deep.

Security isn't a specific set of knowledge, it's curiosity. It's the ability to learn about something and REALLY understand it, not just "this is what I was told and it's good enough.

Security is "I've done this and I understand exactly how it works, and because I understand how it works, I understand how the people that don't understand it are making mistakes.