Home›Cybercrime & Safeguards
Cybercrime & Safeguards Grade 12
Types of cybercrime, the people who commit them, their effects on individuals and organisations, and the safeguards used to prevent them.
Computer Criminals
| Type | Description |
|---|
| Hacker | Gains unauthorized access to systems. White hat (ethical) vs Black hat (malicious). |
| Cracker | Breaks software protection or encryption for illegal access or distribution |
| Script kiddie | Uses pre-written tools without understanding them; less skilled |
| Insider threat | Current or former employee who misuses access privileges |
| Cybercriminal | Commits crime for financial gain (fraud, ransomware, identity theft) |
Types of Cybercrime
| Crime | Description |
|---|
| Identity theft | Stealing personal information to impersonate someone (open accounts, get loans) |
| Phishing | Fake emails that look official to steal credentials |
| Pharming | Redirecting users to fake websites to steal information |
| Ransomware | Encrypts victim's data; demands payment to restore access |
| Business data theft | Stealing trade secrets, customer databases, or financial records |
| SQL Injection | Inserting malicious SQL via web forms to manipulate or steal database data |
| DDoS attack | Distributed Denial of Service — overwhelming a server with traffic to take it offline |
| Online fraud | Scams, fake auctions, advance-fee fraud (419 scams) |
| Cyberbullying | Harassment, threats or humiliation via digital channels |
| Piracy | Illegally copying, distributing or using copyrighted software/media |
Effects of Cybercrime
On Individuals
- Financial loss — stolen money or fraudulent accounts opened in your name
- Emotional distress and reputational damage
- Legal complications if identity is used for crimes
- Loss of private data (photos, documents)
On Businesses
- Financial loss from stolen funds, ransom payments, or system recovery
- Loss of competitive advantage if trade secrets are stolen
- Reputational damage and loss of customer trust
- Legal penalties for failing to protect customer data
- Operational downtime while systems are restored
Safeguards Against Cybercrime
| Safeguard | How it protects |
|---|
| Antivirus / Antimalware | Detects and removes malicious software |
| Firewall | Filters unauthorised network traffic |
| Encryption | Scrambles data so intercepted data is unreadable |
| Strong passwords + MFA | Makes accounts much harder to compromise |
| Regular backups | Allows recovery after ransomware or data loss |
| Software updates / patches | Fixes known vulnerabilities before criminals exploit them |
| User training / awareness | Educated users are less likely to click phishing links |
| Access control | Least-privilege principle: users only access what they need |
| Input validation | Prevents SQL injection by sanitising user input |
| Digital certificates + HTTPS | Verifies website legitimacy; encrypts all data in transit |
SA Legal Context
In South Africa, cybercrime is covered by:
- Cybercrimes Act, 2020: criminalises hacking, ransomware, online fraud, malicious communications
- POPIA (Protection of Personal Information Act): governs how personal data must be collected, stored and protected
- Electronic Communications and Transactions (ECT) Act: regulates e-commerce and online transactions