## about this category
Security concentrates the articles about protecting systems and data: the fundamentals of cryptography, authentication and authorisation, the most common vulnerabilities in web applications, and the practical implications of Brazil’s data-protection law (LGPD) for anyone building software there. The focus is twofold: understanding how attacks work, and writing safer code and architectures from the start.
Topics in this category:#Security
## all articles
Security
- Security
Kali Linux: what it is, what it is for, and how to install it
Kali Linux is a Debian-based distribution, maintained by OffSec, with hundreds of pentest tools for security auditing and ethical hacking.
Read article
Henrico - Security
What is a pentest? Penetration testing explained
A pentest, or penetration test, is a simulated and authorized attack that looks for vulnerabilities in systems to fix them before hackers exploit them.
Read articleHenrico - Security
What is SSH: secure connection between servers
SSH (Secure Shell) is an encrypted protocol that allows accessing and administering remote servers securely over port 22, replacing Telnet.
Read articleHenrico - Security
Gatekeeper and UBA: User Behavior Analytics
UBA monitors user behavior to detect anomalies; integrated with Gatekeeper, it exposes internal threats that authentication alone cannot see.
Read articleHenrico - Security
Types of Gatekeeper: Hardware, Software, and Cloud
The three types of gatekeeper are hardware, software, and cloud. Compare how each controls access, its costs, and when to use each security solution.
Read articleHenrico - Security
Gatekeeper Implementation: Challenges and How to Overcome Them
The 4 biggest challenges when implementing a Gatekeeper: legacy integration, training, access policies, and compliance — with practical strategies.
Read articleHenrico - Security
Gatekeeper and Remote Access: How to Protect Data?
Gatekeeper protects remote access with MFA, granular access policies and auditing, releasing corporate data only to authorized users.
Read articleHenrico - Security
Gatekeeper and MFA: how to strengthen enterprise security
MFA requires two or more authentication factors and, integrated with the Gatekeeper, reduces the risk of compromised enterprise accounts by 99.22%.
Read articleHenrico - Security
LGPD: what it is, data subjects'' rights and company duties
The LGPD is the Brazilian law that regulates the use of personal data. Understand principles, legal bases, data subjects'' rights and companies'' obligations.
Read articleHenrico - Security
Gatekeeper: what it is and how it protects digital access
Understand what a Gatekeeper is, the access control mechanism that authenticates users, enforces permission policies and blocks unauthorized access.
Read articleHenrico