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IT Act 2000 and Cybercrimes in India: Key Provisions, Offences and Amendments

Guide to IT Act 2000 key provisions. Covers digital signatures, cyber offences (hacking, identity theft, cyberstalking), Section 66 to 74, adjudication, and 2008 amendments.

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Cyber & Data Protection
Published
May 13, 2026
Last updated
Oct 8, 2026
Reading time
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Last updated: October 2026Verified against: Government sources

The Information Technology Act 2000 (IT Act), amended significantly in 2008, is India's primary legislation governing electronic commerce and cybercrimes. As digital transactions dominate, understanding the IT Act is essential for businesses, individuals, and legal professionals.

Key Provisions of IT Act 2000

  • Section 2: Definitions including electronic records, digital signatures, computer, cybercafe
  • Sections 3-10: Digital signatures and electronic contracts — legal recognition
  • Section 43: Civil penalty for unauthorized access, hacking, virus infection — up to Rs. 1 crore compensation
  • Section 66: Computer-related offences (hacking) — imprisonment up to 3 years + fine Rs. 5 lakh
  • Section 66A (struck down): Was used to arrest for offensive messages — struck down by SC in Shreya Singhal case 2015
  • Section 66B: Receiving stolen computer resource — up to 3 years
  • Section 66C: Identity theft (using another's digital signature/password) — up to 3 years
  • Section 66D: Cheating using computer — up to 3 years
  • Section 66E: Privacy violation (publishing private images) — up to 3 years
  • Section 66F: Cyber terrorism — up to life imprisonment
  • Section 67: Publishing obscene material online — up to 5 years
  • Section 69: Government power to intercept/decrypt electronic communications
  • Section 72: Breach of confidentiality by intermediaries — up to 2 years

Intermediary Liability

Under Section 66A(2) (now Rules under IT Act), intermediaries (ISPs, social media platforms, app stores) enjoy safe harbour if they: act as passive conduit, don't initiate transmission, don't select recipients, and act expeditiously on takedown notices. The IT Rules 2021 (Intermediary Guidelines) now require: grievance redressal officers, monthly compliance reports for large platforms, and take-down within 24-36 hours.

Adjudication Under IT Act

Civil disputes for Section 43 claims (unauthorized access, damages) go to Adjudicating Officers (state IT secretaries) for claims up to Rs. 5 crore. Higher value claims go to civil courts.

Cyber Appellate Tribunal (CYTAT)

Appeals from Adjudicating Officers go to the Cyber Appellate Tribunal. Further appeal to High Court.

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Quick recapKey facts & short answers

Key Facts About Act 2000 and Cybercrimes

  • Applies in: All states across India, under the relevant central law.
  • Mode: Mostly online via the official government portal.
  • Typical timeline: Ranges from a few days to a few weeks depending on the case.
  • Non-compliance: May attract penalties, interest or late fees.
  • Expert help: TaxClue completes Act 2000 and Cybercrimes end to end for you.

What is Section 66 of the IT Act?

Computer-related offences including hacking (unauthorized access with intent to cause damage) — punishable with up to 3 years imprisonment and fine up to Rs. 5 lakh.

Is Section 66A of IT Act still in force?

No. The Supreme Court struck down Section 66A (offensive messages) in Shreya Singhal v Union of India (2015) as unconstitutional for violating freedom of speech.

Access should follow need; most leaks begin with access nobody remembered granting.

— TaxClue Data Protection Desk

Act 2000 and Cybercrimes: a key compliance topic in Indian tax and corporate law that businesses and individuals must understand to remain compliant.

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Disclaimer: This article is for general informational purposes only and does not constitute professional tax, legal or financial advice. Laws, rates and due dates change and can vary by individual case — always verify with the relevant government source (e.g. mca.gov.in, incometax.gov.in) or consult a qualified professional before acting. TaxClue accepts no liability for decisions taken based on this content.

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Questions, answered

Short, direct answers to the 6 questions readers ask most on this topic.

Computer-related offences including hacking (unauthorized access with intent to cause damage) — punishable with up to 3 years imprisonment and fine up to Rs. 5 lakh.

No. The Supreme Court struck down Section 66A (offensive messages) in Shreya Singhal v Union of India (2015) as unconstitutional for violating freedom of speech.

Section 66C — fraudulently using someone else's electronic signature, password, or other identifying feature. Punishable up to 3 years imprisonment.

Section 66F — accessing protected systems or introducing viruses to threaten national security/critical infrastructure. Punishable with imprisonment up to life.

Network service providers, internet service providers, web hosting companies, search engines, social media platforms, and similar entities. They have safe harbour protection if they comply with IT Rules.

Adjudicating Officers (state IT secretaries) for Section 43 claims up to Rs. 5 crore. Higher claims go to civil courts.