Internet and cybersecurity is one of the most dynamic sub-topics in SBI PO Computer Awareness — and its weightage has grown in recent years as banking exams increasingly reflect real-world digital threats. Questions appear in every Mains sitting, covering cyber threats, encryption basics, internet terminology, and India's cybersecurity framework.
Most aspirants either skip this topic or study it without structure, missing the specific terminology SBI PO tests. This guide covers every internet and cybersecurity concept for SBI PO that has appeared in past papers — precise, exam-focused, and revision-ready.
🎯 Quick Answer (30-Second Read)
SBI PO tests cyber threat types (malware, phishing, ransomware, spyware, DoS), encryption basics (symmetric vs asymmetric), and internet protocols (HTTP vs HTTPS, SSL/TLS)
India's primary cyber law is the Information Technology Act, 2000 — amended in 2008; nodal agency is CERT-In (Indian Computer Emergency Response Team)
Firewall = software/hardware that filters network traffic; Antivirus = detects and removes malware — SBI PO tests this distinction directly
SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are encryption protocols used to secure websites — HTTPS uses TLS
Master 15 cyber threat definitions and India's IT Act basics — that covers 90% of SBI PO cybersecurity questions
Source: cert-in.org.in, meity.gov.in — Ministry of Electronics and Information Technology
Cyber Threats: The Most Tested Category
SBI PO tests cyber threat names, definitions, and identifying characteristics — not technical mitigation strategies. Know what each threat does and how to identify it from a scenario.
High-Priority Cyber Threats for SBI PO
| Threat | What It Does | Key Identifier |
|---|---|---|
| Virus | Attaches to files, spreads when file is shared | Needs a host file |
| Worm | Self-replicates and spreads across networks without host | No host file needed |
| Trojan Horse | Disguises itself as legitimate software | Appears harmless |
| Ransomware | Encrypts files, demands payment for decryption key | Demands money |
| Spyware | Secretly monitors user activity and collects data | Steals information |
| Adware | Displays unwanted ads, often bundled with free software | Shows pop-up ads |
| Phishing | Fake emails/websites to steal credentials | Impersonates trusted sources |
| DoS/DDoS | Overwhelms a server to make it unavailable | Floods with traffic |
| Keylogger | Records every keystroke to steal passwords | Captures typed data |
| Rootkit | Gives unauthorized admin access while hiding itself | Conceals presence |
Source: cert-in.org.in — CERT-In cybersecurity advisories
⚡ Most-Tested Distinction: Virus vs Worm
Virus vs Worm is the most tested distinction in SBI PO Computer Awareness. The key difference: a virus needs a host file to spread; a worm is self-replicating and spreads independently across networks.
Internet Basics and Encryption: Direct Question Topics 🔐
Internet Terminology SBI PO Tests
WWW (World Wide Web)
System of interlinked hypertext documents accessed via the Internet — invented by Tim Berners-Lee in 1989
URL (Uniform Resource Locator)
Web address used to access a resource
ISP (Internet Service Provider)
Company that provides internet access — e.g., Jio, Airtel, BSNL
Cookie
Small file stored on a user's browser by a website to remember preferences
Cache
Temporary storage of frequently accessed data to speed up retrieval
Bandwidth
Maximum data transfer rate of a network connection
Encryption Basics
Encryption converts readable data (plaintext) into unreadable format (ciphertext) to prevent unauthorised access. SBI PO tests two types:
Symmetric Encryption
Same key used to encrypt and decrypt — faster, used for large data
Example: AESAsymmetric Encryption
Different keys used — public key encrypts, private key decrypts — more secure
Example: RSA💡 Key Insight: SSL/TLS are cryptographic protocols that secure internet communications. HTTPS websites use TLS — the padlock symbol in your browser confirms TLS is active. SBI PO tests: "What does HTTPS use for security?" Answer: SSL/TLS.
India's Cybersecurity Framework: High-Exam-Priority Facts
Kavya from Mumbai, who scored 18/20 in SBI PO 2025 Mains Computer Awareness, used one focused approach: "I memorised CERT-In, the IT Act year, and ten cyber threat names. That covered every cybersecurity question in the paper without any technical study."
— In our analysis of 500+ PrepGrind students who appeared for SBI PO Mains, those who combined cyber threat definitions with India's IT Act basics scored 3–4 marks higher in Computer Awareness than those who studied only international cybersecurity concepts.
India's Cybersecurity Framework — Key Facts
IT Act, 2000
India's primary cyber law; amended in 2008; governs electronic commerce, cybercrime, and digital signatures
CERT-In
Indian Computer Emergency Response Team; nodal agency under MeitY for cybersecurity incident response; established 2004
Cyber Surakshit Bharat
Government initiative to raise cybersecurity awareness across India
DPDP Act, 2023
Digital Personal Data Protection Act, 2023 — India's dedicated data privacy law — high-probability current affairs + Computer Awareness crossover question
Firewall vs Antivirus — Direct SBI PO Question Pair
Firewall
1st Line of DefenceMonitors and filters incoming/outgoing network traffic based on security rules — prevents threats from entering the system
Antivirus
2nd Line of DefenceDetects, quarantines, and removes malicious software already on the system
People Also Search For
1. What cybersecurity topics are asked in SBI PO Computer Awareness?
SBI PO tests cyber threat types (virus, worm, ransomware, phishing, Trojan, spyware, DoS/DDoS), encryption basics (symmetric vs asymmetric, SSL/TLS), internet terminology (URL, ISP, cookie, bandwidth, WWW), firewall vs antivirus distinction, and India's IT Act 2000 with CERT-In as the nodal agency. Questions are definition and identification-based — not technical implementation. Knowing the name, purpose, and one distinguishing fact per threat is sufficient.
2. What is the difference between a virus and a worm for SBI PO?
A virus attaches itself to a host file and spreads only when that infected file is shared or executed. A worm is self-replicating — it spreads independently across networks without needing a host file, making it faster and more damaging. SBI PO tests this distinction as a direct definition question or scenario-based MCQ ("Which malware spreads without a host file?"). Always remember: Virus = needs host; Worm = self-sufficient.
3. What is CERT-In and why is it important for SBI PO?
CERT-In (Indian Computer Emergency Response Team) is India's national nodal agency for cybersecurity, established in 2004 under the Ministry of Electronics and Information Technology (MeitY). It responds to cybersecurity incidents, issues advisories, and coordinates national cyber defence. SBI PO tests CERT-In's full form, parent ministry (MeitY), and establishment year. The IT Act 2000 (amended 2008) provides the legal framework under which CERT-In operates.
4. What is phishing and how does it differ from other cyber threats?
Phishing is a social engineering attack where attackers send fraudulent emails, messages, or create fake websites that impersonate trusted entities (banks, government agencies) to steal login credentials or financial information. Unlike technical malware attacks, phishing exploits human psychology rather than software vulnerabilities. SBI PO tests phishing definition, the related term "spear phishing" (targeted phishing against a specific individual), and "vishing" (voice phishing via phone calls).
5. What is the IT Act 2000 in the context of SBI PO Computer Awareness?
The Information Technology Act, 2000 is India's primary legislation governing cyber activities — covering electronic contracts, digital signatures, cybercrime, and data protection. It was amended in 2008 to include provisions for cybercrime like hacking, identity theft, and cyber terrorism. For SBI PO, know: year of enactment (2000), amendment year (2008), and that CERT-In operates under it. The newer Digital Personal Data Protection Act, 2023 is a separate, complementary law focused specifically on data privacy.
Conclusion: Your Next Step
Internet and cybersecurity for SBI PO exam is a completely manageable topic when you study the right things. Master the ten cyber threat types, the virus vs worm distinction, SSL/TLS encryption, firewall vs antivirus, and India's IT Act with CERT-In — and you've covered every question this sub-topic generates in SBI PO Mains.
Give this topic 7–8 days. Practice 30–40 threat-identification MCQs. This section rewards aspirants who are systematic — not those who are technically brilliant.
Ready to ace SBI PO Computer Awareness? Explore PrepGrind's Cybersecurity and Internet topic-wise quizzes and full Computer Awareness mock tests — designed for banking aspirants who want maximum marks with minimum technical background.