Cyber Security

Pass the CCSP on your first attempt. This 2026 guide covers all six domains, the new adaptive (CAT) exam format, and the August 2026 outline refresh with AI security woven throughout. Clear explanations, exam-style reasoning, and a proven study plan take you from registration to certificate.

Master offensive and defensive security techniques across smart contracts, DeFi protocols, bridges, rollups, consensus systems, and next-generation Web3 infrastructure.Blockchain ecosystems secure billions of dollars in digital assets, making them a persistent target for sophisticated cyberattacks. From reentrancy vulnerabilities and oracle manipulation to flash loan exploits, bridge compromises, governance attacks, and Layer-2 weaknesses, blockchain security requires expertise spanning cryptography, distributed systems, protocol engineering, and adversarial analysis.

A Comprehensive Engineering Guide to Smart Contract Auditing, EVM Internals, DeFi Exploitation, Protocol Economics, and Blockchain SecuritySmart contracts operate in environments where code, financial assets, cryptographic authorization, and economic incentives interact directly. A subtle implementation error can compromise access controls, corrupt accounting, undermine protocol solvency, or expose digital assets to irreversible loss. Understanding these risks requires more than familiarity with Solidity syntax. It demands a rigorous examination of execution semantics, storage architecture, transaction ordering, protocol mathematics, and the assumptions that connect individual contracts to larger decentralized systems.Smart Contract Security: Finding DeFi Vulnerabilities is a comprehensive, implementation-focused engineering reference to identifying, analyzing, testing, and mitigating vulnerabilities in Ethereum smart contracts and decentralized finance protocols. Across 40 chapters, it progresses from EVM architecture and Solidity execution to advanced DeFi attack surfaces, automated security analysis, formal verification, real-world exploit investigations, and professional auditing practices.

Design, Build, and Operate Autonomous AI Systems for Modern Cyber DefenseCybersecurity is evolving beyond traditional automation toward intelligent systems capable of continuously analyzing security telemetry, investigating threats, coordinating specialized tools, and executing controlled defensive actions. This shift introduces new engineering challenges involving agent architecture, decision-making, authorization, operational reliability, and the verification of security-critical actions.

Learn how expert penetration testers find what scanners miss. This practical guide takes you from the foundations of offensive security to advanced assessment techniques, teaching you how to uncover, validate and chain weaknesses then turn technical findings into clear, useful results.

See what your network traffic is really revealing. This practical guide breaks down TLS fingerprinting, JA3/JA4 and HTTP client identification, then shows you how to put them to work with Python, Go and Rust. From protocol internals to production pipelines, learn how to identify clients at scale without losing sight of privacy or operational reality.

Adversaries are recording encrypted traffic today to read it once a quantum computer arrives. NIST published the replacements in 2024, and OpenSSL ships them now. This is the migration: measured on one laptop with stock OpenSSL 3.5.5, with every claim labeled verified, reported, or proposed.