Chapter Overview
Threats to Data
Attackers use hacking, phishing, malware, and social engineering to access your information illegally.
Protection Methods
Encryption, firewalls, biometrics, 2FA, and SSL protect your data by preventing unauthorized access and exposure.
Intellectual Property
Copyright law protects original work from being copied or distributed without permission.
Threats to Data
Think of your data as a house. Without proper locks, walls, and guards, a thief can walk straight in. Similarly, computer systems face constant threats from criminals looking for passwords, financial data, personal information, or just wanting to cause chaos. Let's explore the main ways attackers try to break in.
Hacking
What is hacking?
Hacking is the act of gaining unauthorized access to a computer system or network without permission. A hacker exploits vulnerabilities (weaknesses) in software, networks, or user behavior to break in and steal data, install malware, or cause damage.
Hackers look for opportunities like:
- Unpatched software: Software with known security flaws that haven't been fixed yet. Like leaving your door unlocked when a locksmith has announced they found the flaw.
- Out-of-date anti-malware: Outdated security software can't recognize new threats.
- Weak passwords: Passwords like "123456" or "password" are cracked in seconds.
Effects of Hacking
A successful hack can cause serious damage:
- Data breaches: Your personal information (emails, addresses, payment details) is stolen.
- Installation of malware: The hacker plants viruses or spyware on your system.
- Data loss: Files are deleted or corrupted.
- Identity theft: Criminals use your identity to commit fraud.
- Financial loss: Direct theft or unauthorized purchases.
How to Prevent Hacking
- Use strong passwords: At least 12 characters with uppercase, lowercase, numbers, and special characters. Think: "MyDog#Blue2024!" rather than "password123".
- Use two-factor authentication (2FA): Even if someone steals your password, they can't get in without your phone.
- Install anti-malware software: Detect and remove malicious programs before they do damage.
- Use a firewall: Acts as a gatekeeper, blocking suspicious traffic from entering your network.
- Keep software updated: Security patches fix known vulnerabilities.
Check Your Understanding
Name three vulnerabilities that hackers exploit, and suggest one prevention method for each.
Phishing
What is phishing?
Phishing is a form of social engineering. The attacker sends fraudulent emails that look legitimate (from a bank, PayPal, Instagram, etc.) to trick you into clicking a link or entering your login details. It's like receiving a fake letter that appears to be from your bank, asking you to "verify your account" by giving your password.
The email often includes: