Cyber Security Crash Course for Beginners:Learn From Scratch

Define cyber threats as the potential for malicious damage to computer networks, arising from insiders, criminals, or nation-states, using social engineering, trojans, and malware.

Explore common cyber attacks and malware, including advanced persistent threats, backdoors, buffer overflows, eavesdropping, social engineering, cross-site scripting, zero-day exploits, viruses, trojans, denial-of-service, and keylogging.

Identify hardware, software, network, physical, and organizational vulnerabilities and how design flaws enable attacks, and highlight encryption, unencrypted channels, and potential legal consequences.

Explore cyber risk and risk management processes, including data breaches, cyber extortion, and human error in online activities. Identify threats, mitigate risks, and prepare contingency plans for crisis management.

Explore the risk management process by identifying risks, analyzing and prioritizing them, and planning mitigation and de-risking using qualitative and quantitative methods.

Explore risk management concepts by identifying risks, applying change control and contingency actions, and implementing mitigation strategies such as avoidance, transfer, and limitation, with ongoing monitoring.

This lecture explains security architecture as a design guide for products and organizations, detailing four adaptive stages: preventive, detective, predictive, and adaptive, and their role in secure controls and standardization.

Explore fundamental cryptography concepts, including encryption and decryption, symmetric and asymmetric algorithms, and the role of public key cryptography in secure data transmission.

Explore how cryptography enables non-repudiation and integrity through digital signatures and public key infrastructure. See how certificate authorities issue certificates to secure websites and prevent impersonation in emails and transactions.

Explore physical, network, and device security to protect people, buildings, and digital data. Learn access control, surveillance, malware defense, and security policies.

Explore cybersecurity planning to protect infrastructure with business continuity, disaster recovery, incident response, and cessation planning, and learn how computer forensics techniques collect, analyze, and document evidence.

Explore business continuity planning and disaster recovery, detailing key elements—resilience, recovery, and contingency—and guiding you through analysis, task prioritization, staff awareness, backups, and recovery site strategies.

Learn how training and awareness support business continuity and disaster recovery by delivering instruction through classrooms, manuals, and workshops, and by engaging senior management and staff in proactive readiness.

Discover how vulnerability scanning reveals vendor, administrator, and user flaws, insecure defaults, and weak passwords, using MBSA and Nessus, followed by ethical penetration testing to strengthen network security.

Learn how an incident response plan guides preparation, identification, isolation, eradication, recovery and documentation to protect organizational assets, assign roles, test actions, and communicate during security incidents.

Explore cybersecurity policies, who drafts them, and how they govern asset protection and policy life cycle—from information gathering to approval, publication, and enforcement.

Learn preventive measures to secure control systems and devices through network segmentation, firewalls, vpn, strong passwords, multi-factor authentication, updates, logging, and incident response.