Cybercrime
Delhi Police Exam
Cybercrime awareness is essential for Delhi Police Computer Awareness exams. This topic covers common threats like phishing and malware along with prevention measures that frequently appear in competitive exams.
1️. What is Cybercrime?
Cybercrime refers to criminal activities that involve computers, networks, or the internet. It includes unauthorized access, data theft, online fraud, hacking, and spreading malware.
Exam-Focused Definition:
"Cybercrime = illegal activities in cyberspace targeting individuals, organizations, or governments."
2️. Common Cyber Threats
1. Phishing
Fraudulent attempts to obtain sensitive information like passwords, bank details, or credit card numbers by pretending to be a trustworthy entity.
Example: Fake emails from "banks" asking for login details.
💡 Exam Trick: If it asks for personal info in email or link → Phishing.
2. Malware
Malicious software designed to harm, exploit, or steal data from computers.
Virus
Infects files and programs
Worm
Spreads automatically across networks
Trojan
Appears legitimate but has hidden malicious functions
Ransomware
Encrypts data and demands ransom
💡 Exam Trick: Malware = All harmful software.
3. Other Threats
Hacking
Unauthorized access to systems
Identity Theft
Stealing personal information
Denial of Service (DoS)
Overloads systems to make them unavailable
3️. Prevention Measures
Do not click suspicious links or attachments
Use updated antivirus software
Strong passwords & 2FA
Verify sender's email address before sharing info
Backup important files
Avoid public Wi-Fi for sensitive transactions
4️. Delhi Police PYQ Style Questions
Phishing attacks are aimed at:
Options: (a) Stealing sensitive information (b) Speeding up internet (c) Formatting hard drive (d) Installing games
Category: Phishing Attacks
Show Answer
Stealing sensitive information
Which of the following is not a type of malware?
Options: (a) Virus (b) Worm (c) Trojan (d) VPN
Category: Malware Types
Show Answer
VPN
Ransomware primarily:
Options: (a) Encrypts files and demands payment (b) Deletes the OS (c) Speeds up PC (d) Prints documents automatically
Category: Ransomware
Show Answer
Encrypts files and demands payment
Spyware is used to:
Options: (a) Track user activities secretly (b) Improve system speed (c) Backup files (d) Format drives
Category: Spyware
Show Answer
Track user activities secretly
The best way to avoid phishing attacks is to:
Options: (a) Open all emails quickly (b) Verify sender and links before clicking (c) Disable antivirus (d) Use weak passwords
Category: Prevention
Show Answer
Verify sender and links before clicking
Short Answer Task
Question:
Write 3 major types of cyber threats and 2 preventive measures in 50 words or less.
Answer Guidelines:
Use keywords like phishing, malware, ransomware, strong passwords, antivirus
Keep your answer concise — 50 words or less as specified
Sample Answer Structure:
Three major cyber threats are: 1) Phishing - fake emails stealing information, 2) Malware - harmful software like viruses and ransomware, 3) Hacking - unauthorized system access. Preventive measures include using strong passwords with 2FA and installing updated antivirus software to detect and block threats.
5️. Quick Recap / Memory Tricks
| Threat | Trick to Remember |
|---|---|
| Phishing | "Hooked by fake emails" |
| Virus/Worm/Trojan | "Malware army" |
| Ransomware | "Files locked = ransom asked" |
| Spyware | "Secretly spying" |
| Prevention | "Think before you click + antivirus" |
Exam Tip: Delhi Police exams commonly ask types of malware, phishing definition, and basic prevention methods. Memorizing the table covers most MCQs.
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