If you are looking for free instructional PDFs and guides on these topics, the following resources are widely used in the cybersecurity community: : A comprehensive, free guide provided by ThreatHunting.net
: Setting up an environment using tools like the ELK Stack (Elasticsearch, Logstash, Kibana) to centralize and analyze logs.
Start small. Pick one hypothesis. Query one week of logs. Find one anomaly. Document it. Over time, this iterative, data-driven culture will transform your security operations center from a reactive help desk into a proactive intelligence unit.
and open-source tools to identify threats before they cause damage. Amazon.com Cyber Threat Intelligence (CTI)
Many public libraries offer free digital access to O'Reilly's complete catalog (formerly Safari Books Online). You simply enter your library card number. You can then download chapters as PDFs legally. Search "Safari Library Access."
Threat intelligence refers to the collection and analysis of data and information about potential and active cyber threats. The goal of threat intelligence is to provide organizations with actionable insights to prevent, detect, and respond to cyber threats. Threat intelligence can include information about threat actors, their tactics, techniques, and procedures (TTPs), and indicators of compromise (IOCs).
The book is structured into four main sections, focusing on building a practical, data-driven security program: Key Chapters & Topics