Imagine starting your workday and, when you turn on your computer, discovering that all your files are encrypted.
On the screen, a cold warning: “If you want your data back, pay the ransom.”
This is the real scenario of an attack ransomware — one of the most devastating digital crimes in the world, capable of paralyzing companies of any size.
According to a report by Check Point Research, ransomware attacks have grown by more than 40% in 2024 in Brazil. Therefore, understanding how they work is the first step to protecting yourself.
What is a ransomware attack?
Ransomware is a type of malware (malicious software) that invades devices and hijack data, preventing access until the victim pays a “ransom.”
In practice, it is a digital kidnapping: Criminals encrypt files or even entire systems and demand payment—usually in cryptocurrency—to grant access.
How does a ransomware attack work?
A ransomware attack typically follows this cycle:
(Sometimes) Leak: stolen data is threatened with publication.
Infection: via phishing emails, fake websites, malicious attachments, or security breaches.
Silent execution: malware installs itself unnoticed.
Encryption: data scrambled with a key unique to the attacker.
Redemption Notice: message requires payment to release access.
Why should your company care?
The impacts go far beyond the financial:
- Total shutdown of operations
- Leakage of sensitive data
- Loss of trust from customers and partners
- Fines and problems with the LGPD
- Damage to reputation and brand image
And worse: paying the ransom does not guarantee the return of the data.
How to protect yourself from a ransomware attack?
At BNF, we advocate a knowledge-based approach prevention and rapid response.
See the main actions:
Well-defined access policies
Frequent backups outside the main environment
Updated Antivirus and EDR
Employee training (social engineering is a common door)
Continuous Monitoring (SOC)
Pentests and vulnerability analysis
What if your company is attacked?
Don't panic — and never pay the ransom without technical guidance.
Act fast: contact a specialized team (like BNF) to contain the attack, recover data, and prevent recurrence.
Conclusion
Ransomware attacks are brutal, but avoidable.
With technology, well-defined processes, and an experienced team, your company can face this threat safely and intelligently.
In the BNF, we unite 24/7 monitoring, rapid response and cyber intelligence to protect what is valuable to your operation.
Don't wait to be the next victim. Talk to our experts now and find out how to protect your company against ransomware and other digital threats.
