Key facts

  • The Information Technology Act, 2000 is India's main law for electronic records, digital signatures and many computer-related offences.
  • The CERT Coordination Center was formed in 1988 after the Morris Worm incident to support coordinated incident response.
  • CERT-In was created in 2004 as India's national computer emergency response organisation for cyber incident coordination and advisories.
  • The Brain virus of 1986 is widely cited as the first IBM PC-compatible computer virus, spreading through floppy disks.
  • The Morris Worm of 1988 became one of the first major internet worms and showed how self-replicating code could disrupt connected systems.

Key Points at a Glance

  1. 1

    The Information Technology Act, 2000 is India's main law for electronic records, digital signatures and many computer-related offences.

  2. 2

    The CERT Coordination Center was formed in 1988 after the Morris Worm incident to support coordinated incident response.

  3. 3

    CERT-In was created in 2004 as India's national computer emergency response organisation for cyber incident coordination and advisories.

  4. 4

    The Brain virus of 1986 is widely cited as the first IBM PC-compatible computer virus, spreading through floppy disks.

  5. 5

    The Morris Worm of 1988 became one of the first major internet worms and showed how self-replicating code could disrupt connected systems.

  6. 6

    The ILOVEYOU outbreak of 2000 spread through email attachments and made social engineering a central exam topic in malware control.

  7. 7

    The WannaCry ransomware attack of 2017 exploited unpatched Windows systems and highlighted the importance of updates and backups.

  8. 8

    ISO/IEC 27001 is a major international standard for information security management systems based on organised risk control.

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Meaning and goals of computer security

Computer security means protecting computer systems, networks, devices, software and data from unauthorised access, misuse, damage, disruption or theft. In an objective examination, the most important idea is the CIA triad: confidentiality, integrity and availability. Confidentiality keeps information away from unauthorised persons. Integrity means information remains accurate, complete and unaltered except through authorised action. Availability means authorised users can access systems and data when needed.

Security is not only a technical subject. It combines hardware controls, software settings, network rules, user behaviour and legal responsibilities. A school computer lab, an office LAN, an online payment system and a government recruitment portal all need basic security because they store credentials, marks, personal details, records and official communication. A Rajasthan example is simple: a school lab account used by many students should not store an instructor's personal email password in the browser, because one careless login can expose private data.

Exam focus: remember the CIA triad, the difference between unauthorised access and authorised use, and the idea that security is a continuing process rather than a one-time installation.

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