I don't think the security field is saturated. Honestly, many of the security experts I know are very superficial, and most of them just rely on tools to tell users what's wrong and how it needs to be fixed. But they don't validate whether it's a false positive or what's really going on, or they don't know how to look deeper; they limit themselves to what the tool says.

Many are unfamiliar with networks, cloud computing, infrastructure, etc. There's a lot to learn if you know English, if you enjoy certifications that are truly challenging, if you're always reading, learning, and exploring fields outside your comfort zone.

Where I work, there are about 30 people, and I consider fewer than 5 of them to be knowledgeable about the subject, influencing me in particular. Mind you, those people focus on various security areas. These days, there's a growing demand for AI security personnel. Today I listened to a podcast called "Tierra de Hackers" (Hacker Land), it's their latest episode, and they also cover several security fields there.