IT Security: Defense against the digital dark arts

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Discover essential IT security concepts, tools, and best practices to safeguard data and systems. This course introduces threats and attacks, encryption algorithms, and the three As of information security: authentication, authorization, and accounting. Explore network security solutions, from firewalls to Wifi encryption, and learn to integrate a culture of security into your organization or team. This is the fifth course in the Google IT Support Certificate, a series designed to prepare you for an entry-level IT support role.

Syllabus

Understanding Security Threats

Course Introduction
The CIA Triad
Essential Security Terms
Malicious Software
Antimalware Protection, Malware Removal
Malware Continued
Learn About Malicious Software Attacks
Practice Quiz: Malicious Software
Network Attacks
Learn About Network Attacks
Denial-of-Service
Supplemental Reading for DDoS Attacks
Practice Quiz: Network Attacks
Client-Side Attacks
Password Attacks
Deceptive Attacks
Deceptive Attacks
Physical Security
Glossary terms from course 5, module 1
Practice Quiz: Other Attacks
Graded Quiz: Module 1 challenge: Understanding Security Threats

Pelcgbybtl (Cryptology)

Cryptography
Supplemental Reading for The Future of Cryptanalysis
Symmetric Cryptography
Symmetric Encryption Algorithms
Supplemental Reading for Symmetric Encryptions
Practice Quiz: Symmetric Encryption
Rob: The work of a security engineer
Asymmetric Cryptography
Asymmetric vs. Symmetric Cryptography
Asymmetric Encryption Algorithms
Learn About an Asymmetric Encryption Attack
Practice Quiz: Public Key or Asymmetric Encryption
Hashing
Hashing Algorithms
Learn About SHA-1 Attacks
Hashing Algorithms (continued)
Practice Quiz: Hashing
Public Key Infrastructure
Certificates
Supplemental Reading for the X.509 Standard
Cryptography in Action
Learn About PGP
Securing Network Traffic
Supplemental Reading for Securing Network Traffic
Cryptographic Hardware
Supplemental Reading for TPM Attacks
Rejection
Practice Quiz: Cryptography Applications
Glossary terms from course 5, module 2
Practice Quiz: Pelcgbybtl (Cryptology)
Qwiklabs guidelines and troubleshooting steps
Creating/inspecting key pair, encrypting/decrypting and sign/verify using OpenSSL
Exemplar: Creating/inspecting key pair, encrypting/decrypting and sign/verify using OpenSSL
Hands-on with Hashing
Exemplar: Hands-on with hashing
Graded Quiz: Module 2 challenge: Pelcgbybtl (Cryptology)

The 3 A's of Cybersecurity: Authentication, Authorization, Accounting

Best practices for authentication
Multifactor Authentication
Multifactor Authentication Options
Physical Privacy and Security Components
Supplemental Reading for Authentication
Certificates, Part Two
RADIUS
Kerberos
TACACS+
Single Sign-On
Practice Quiz: Authentication
Rob: My path to IT
Authorization and Access Control Methods
Mobile Security Methods
Access Control
Learn About Authorization
Access Control List
Tracking Usage and Access
Practice Quiz: Authorization and Accounting
Rob: Important skills in security
Glossary terms from course 5, module 3
Graded Quiz: Module 3 challenge: Authentication, Authorization, Accounting

Securing Your Networks

Network Hardening Best Practices
Supplemental Reading for Network Hardening Best Practices
Network Hardware Hardening
Supplemental Reading on IEEE 802.1X
Network Software Hardening
Supplementary reading on HAProxy, nginx and Apache HTTP server
Practice Quiz: Secure Network Architecture
Joe: My personal obstacle
WEP Encryption and Why You Shouldn't Use It
Supplementary reading for WEP Encryption and Why You Shouldn't Use It
Let's Get Rid of WEP!
WPA2
Supplementary reading on WiFi Protected Setup (WPS) PIN brute force vulnerability
Wireless Hardening
Practice Quiz: Wireless Security
Heather: The impact of social engineering
Sniffing the Network
Wireshark and tcpdump
Learn About Promiscuous Mode
Intrusion Detection/Prevention Systems
Supplemental reading for Intrusion Detection/Prevention System
Unified Threat Management (UTM)
Home Network Security
Practice Quiz: Network Monitoring
Introduction to tcpdump
Exemplar: Introduction to tcpdump
Glossary terms from course 5, module 4
Graded Quiz: Module 4 challenge: Securing Your Networks