Digital attacks, data leaks, cyber scams, corporate espionage… In 2025, Online security has become one of the biggest concerns for companies, governments, and ordinary users.. And behind all this protection lies a profession that has become essential: the cybersecurity expert.

While this used to be a restricted and little-discussed field, today it is... one of the most valued areas of technology. Companies have realized that there's no point in growing, investing in modern systems, or digitizing processes if security doesn't keep pace.

But what exactly does a cybersecurity professional do? Why is this career in high demand? And how does one get started in this field?

Next, we'll answer all of that directly — and show you why. This profession has become a priority in Brazil and around the world.

What is cybersecurity?

Cybersecurity is the set of practices, techniques, and tools that protect systems, networks, devices, and data against attacks, unauthorized access, leaks, and fraud.

She works on several fronts, such as:

  • Protection of personal and corporate data
  • Prevention of digital intrusions and ransomware attacks.
  • Real-time threat monitoring
  • Incident response and security breaches
  • User education to avoid common mistakes.

In other words, the focus is To ensure that everything that happens in the digital environment is protected against risks — external or internal.

Why has this profession become a priority?

1# Increase in cyberattacks

In recent years, the number of attacks has increased dramatically. And we're not just talking about large companies. Small businesses, schools, clinics, and even individuals have been targeted by hackers and digital scammers.

And the more connected we are, the larger the attack surface. Every app, every device, every database can be an entry point if it's not protected.

2# Accelerated digitization

Companies that were still operating in a traditional, brick-and-mortar format migrated to digital within a few months. However, this transformation wasn't always accompanied by a secure infrastructure.

As a result, the need for professionals who secure the digital operation.

3# New data protection laws

The LGPD (General Data Protection Law) in Brazil, and similar laws around the world, created Legal obligations for companies regarding the data they collect.. Those who do not comply may be fined — or even shut down.

Companies need specialists to ensure compliance, audit processes, and prevent failures.

4# Greater public awareness

Today, the average customer is already asking: "Is my data protected?"“
And rightly so. Nobody wants their social security number, credit card number, or password leaked online.

Therefore, investing in cybersecurity It has also become a matter of reputation for brands..

What does a cybersecurity professional do?

It depends on the area of expertise. But, in general, they are responsible for:

  • Analyze system and network vulnerabilities.
  • Implement digital security solutions
  • Investigate and respond to incidents.
  • Monitor suspicious access and activity.
  • Create internal protection policies.
  • Testing security with simulated attacks (pentests)
  • Train employees on the safe use of tools.

It's a job that mixes technology, strategy and behavioral analysis. And that requires constant attention, since the threats are constantly changing.

What are the main job roles in the field?

1# Information Security Analyst
Responsible for monitoring, identifying, and correcting system failures.

2# Penetration testing specialist
It simulates attacks to find vulnerabilities before a real attacker discovers them.

3# Digital Compliance Consultant
It helps companies comply with regulations such as LGPD, GDPR, and other international rules.

4# Network Security Engineer
Creates and maintains secure infrastructures to protect data traffic.

5# Incident Responder
They act on the front lines when an attack occurs.

6# Cyber Threat Intelligence Analyst
It studies hacker behavior and anticipates potential future threats.

Is the market really booming?

Yes — and There are far more job openings than available professionals..

According to recent data from ISACA (a global information security organization), more than 601,300 companies are facing difficulties in hiring qualified cybersecurity specialists.

And the trend is that this will get worse, since:

  • Demand increases every year.
  • The attacks are becoming more sophisticated.
  • Legal requirements become more stringent.

In other words, anyone entering the area now will have Plenty of room to grow, good salaries, and job security.

What are the salaries?

Salaries vary by region, company type, and experience level. But on average:

  • JuniorR$ 3.500 to R$ 6.000
  • Full: R$ 6,500 to R$ 10,000
  • Senior: R$ 11,000 to R$ 20,000
  • Experts hired by international companies (remote): from US$$ 3,000 to US$$ 8,000 per month

In addition to salary, it's common to receive bonuses, profit sharing, and access to company-paid courses.

Do you need a college degree?

Not necessarily. While a degree helps, the most important thing in this field is:

  • To have recognized certifications (such as CompTIA Security+, CEH, CISSP, etc.)
  • Understanding networks, operating systems, and security protocols.
  • Knowing how to program (even if basic)
  • Studying all the time
  • Having ethics, responsibility, and professional conduct.

Today, Many professionals are self-taught., ...coming from other IT fields or even beginners who immersed themselves in their studies and managed to secure good opportunities.

How do I get started in this field?

If you want to enter the world of cybersecurity, you can follow this path:

1# Learn the basics of networking, Linux, and operating systems.
2# Study about protocols, VPN, firewall, cryptography
3# Take free or inexpensive introductory courses (Udemy, YouTube, Alura)
4# Seek entry-level certifications (such as CompTIA Security+)
5# Participate in communities, forums, study groups.
6# Create a home lab for practice
7# Apply for junior positions, even if you are still learning.

The most important thing is to start, be consistent, and show genuine interest in the field..

And what about the future of the profession?

The trend is clear: More and more companies will need digital security professionals..

With the advancement of artificial intelligence, the internet of things, 5G, and cloud data, New types of threats will emerge. — and the demand for specialists will only grow.

Before long, it may become common to see cybersecurity professionals working in areas such as:

  • Connected cars
  • Smart homes
  • Medical devices
  • Artificial intelligence applied to security
  • National cyber defense

It's a profession with A vision for the future, a real purpose, and room for innovation..

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April 7, 2025