Security Essentials

Livro digital

Título:
Security Essentials

Autor:
Linux Professional Institute

Categoria:
Tecnologia > DevOps

Doador:
Raffaello D. N.

Sinopse:
In an era of rampant data breaches and ransomware attacks, protecting digital assets has become an essential skill for every IT professional. "Security Essentials" by Linux Professional Institute guides readers from foundational principles such as the CIA triad — Confidentiality, Integrity, and Availability — through to practical risk assessment and incident classification, transforming abstract security concepts into an actionable discipline. The material progresses through five interconnected domains: security concepts and ethical behavior in handling vulnerabilities, encryption spanning hash functions, PKI, TLS, and hands-on use of VeraCrypt and Cryptomator, device and storage security including malware defense and backup strategies, network security from Wi-Fi hardening to DDoS mitigation and Tor-based anonymity, and identity protection through password managers, multi-factor authentication, and social media privacy configurations. Each chapter blends theoretical foundations with guided and explorational exercises. What distinguishes this work is its hybrid role as a practical field manual and the official study guide for LPI's Security Essentials certification (exam 020-100). Readers acquire not just conceptual knowledge but concrete skills — configuring end-to-end encrypted email in Thunderbird, creating encrypted storage containers, evaluating browser certificate chains, and recognizing phishing and social engineering tactics. By the end, the reader can independently assess security risks and apply layered countermeasures, whether securing personal devices or contributing to an organizational information security management system.