Malware and Its Types (Virus, Worm, Trojan, Spyware, Rootkit)Importance 4/5
Distinguish a virus, a worm and a trojan by how each spreads and hides. Remember what spyware, adware, keyloggers and rootkits do, with Pegasus as an example of spyware.
RansomwareImportance 5/5UPSC 2018
How does ransomware work, and what is double extortion? How is an extortion-only data leak different? Remember WannaCry, Petya and EternalBlue, and how they are linked.
Botnets and Distributed Denial-of-Service AttacksImportance 3/5
What is a botnet? Distinguish a denial-of-service attack from a distributed one. What is the role of the Cyber Swachhta Kendra in India?
Phishing, Vishing, Smishing and Social EngineeringImportance 4/5
Distinguish phishing, spear-phishing, vishing, smishing and quishing by the channel each uses. Does social engineering target people or systems, and why? Understand how these methods feed KYC and courier scams.
Zero-Day Vulnerabilities and Advanced Persistent ThreatsImportance 3/5
What is a zero-day vulnerability, and why is it valuable to attackers? How does an advanced persistent threat differ from a one-off attack? Why is the time between the disclosure of a flaw and its exploitation shrinking (for example with AI), and why does this matter for patching?
Software Supply-Chain Attacks (Axios Hack)Importance 3/5
How does a supply-chain attack reach many users through one trusted software source? Understand the method used in the Axios case (hijacked account, fake updates, hidden dependency). What is Axios, and what is npm? Remember SolarWinds as the classic earlier case.
Other Attack Methods (Man-in-the-Middle, Cryptojacking, Juice Jacking)Importance 2/5
Remember what each of these terms means: man-in-the-middle, cryptojacking, juice jacking and SQL injection.
Attacks on Connected Devices (E-Rickshaw Battery Systems)Importance 2/5
What does a battery management system do in an electric vehicle? Understand how weak or default passwords on Bluetooth-enabled systems let a nearby attacker switch off e-rickshaw batteries. Why does this case show the weak security of low-cost connected devices?
Cyber Warfare and State-Sponsored AttacksImportance 3/5
How does a state-backed attacker differ from an ordinary criminal? Remember Stuxnet as the classic case. What does cyber terrorism mean, and which section of the IT Act deals with it?
Attacks on Critical Infrastructure in India (Kudankulam, AIIMS)Importance 4/5
Why are power, health and nuclear systems attractive targets? Remember the Kudankulam malware incident of 2019, the 2026 leak from a contractor, and the AIIMS Delhi attack of 2022. Understand why even non-core data can help a hostile actor, and why breach disclosure is a problem.
AI in Cyber Attack and DefenceImportance 3/5
How can AI help attackers, and how can it help defenders? Understand why AI agents that act beyond their limits in cyber tests raise a new kind of risk. What can AI models that find software flaws at scale change, and what AI tools does I4C use?