Data Security
Why?
Keeping data safe is a vital skill for anyone working with information. As a data scientist, you'll often handle sensitive data that needs protection from hackers and unauthorized access. Companies must follow laws like GDPR that require proper data handling. Understanding security basics helps you build trust with clients and users while keeping valuable information safe. These skills will help you create data projects that protect privacy and meet legal requirements.
What?
This course teaches you how to protect data at every stage - when it's stored, when it's being used, and when it's sent between computers. You'll learn about making networks secure, using encryption (special codes that scramble data), and verifying who should have access to information. We'll cover both the big ideas behind security and practical steps you can take to keep data safe on computers and websites.
Curriculum:
Introduction to Data Security
Basic concepts of keeping data safe, common security threats, types of attacks to watch for, and why security matters when working with data.
Network Infrastructure Planning and OSI Model
How to design and plan network layouts, understanding physical connections and logical organization of networks, the seven layers of the OSI model, and how to build and maintain secure network systems.
Fundamentals of Computer Network Security
Introduction to basic security concepts, different types of attacks (like passive eavesdropping and active tampering), security services that protect your data (authentication, confidentiality, integrity), security tools, and standard security frameworks.
Protocols for Secure Communications
Learning about the special rules computers use to send information safely, such as HTTPS (for secure websites), SSH, and other methods that scramble data while it travels between computers.
Symmetric Encryption and Message Confidentiality
Using secret codes (like AES) where the same key locks and unlocks data. You'll learn how these codes work, how to manage the keys, and how to keep messages private.
Public Key Cryptography and Message Authentication
Special encryption that uses key pairs - one public and one private. This lets people send you encrypted information without sharing secrets first. Also covers digital signatures that prove who sent a message.
Notes
Data security isn't just for IT specialists - it matters for anyone working with data. Think about how you can apply these security ideas to your own projects. What you learn here will help you protect sensitive information, keep unauthorized people from accessing your work, and make sure you're handling data in ethical and legal ways.
