The 6-hour rule
Under CERT-In's Directions of 28 April 2022 (issued under section 70B(6) of the IT Act), service providers, intermediaries, data centres, body corporates and government organisations must report specified cyber incidents to CERT-In within 6 hours of noticing them, or of someone bringing them to their notice. CERT-In's FAQs say to report what you know within the 6 hours and add details as the investigation progresses.
Which incidents count
Annexure I of the Directions lists 20 incident types. They include:
- targeted scanning or probing of critical networks and systems;
- compromise of critical systems, and unauthorised access to IT systems or data;
- website defacement or intrusion;
- malicious code attacks, such as ransomware;
- attacks on servers such as database, mail and DNS servers;
- identity theft, spoofing and phishing;
- denial-of-service attacks;
- data breaches and data leaks.
All 20 types share the same 6-hour window. The clock above covers ten of the most common.
The other duties in the Directions
- Keep logs of all ICT systems for a rolling 180 days, within India.
- Synchronise system clocks with the NIC or NPL time servers, so logs line up across systems.
- Name a point of contact to deal with CERT-In.
CERT-In is not the only clock
| Who | Deadline |
|---|---|
| CERT-In | 6 hours from noticing a specified incident |
| RBI (banks, NBFCs and others) | 6 hours from detection, on the DAKSH platform |
| SEBI (CSCRF) | 6 hours, to SEBI as well as CERT-In |
| Data Protection Board (DPDP Rules, from 13 May 2027) | Without delay; detailed report within 72 hours, for personal data breaches |
Six hours is short if nobody is watching at 2 a.m. The practical answer is monitoring that notices incidents, a reporting template prepared in advance, and one runbook covering every regulator that applies to you. See incident response and 24x7 monitoring and on-call.
Sources
- CERT-In Directions under s.70B(6) of the IT Act, 28 April 2022
- CERT-In FAQs on the Cyber Security Directions (May 2022)
Facts checked against the sources above on 22 October 2026. General information, not legal advice.
