DPDPA Guide
Data Breach Basics
DPDPA requires businesses to notify the Data Protection Board and affected individuals when personal data is breached — without delay. This applies to all Data Fiduciaries regardless of size. This guide covers what counts as a breach, what you must report, the notification timeline, and the first practical steps to take.
A data breach is any incident where personal data is accessed, disclosed, altered, or destroyed without authorisation. Under DPDPA, businesses have mandatory obligations when a breach occurs.
What Is a Personal Data Breach?
A breach includes:
- Unauthorised access to a database or file containing personal data
- Accidental email containing personal data sent to the wrong recipient
- Ransomware attack encrypting or exfiltrating customer or employee records
- Loss of a device containing personal data
- Insider misuse of data access privileges
Notification Obligations
Section 8(6) of the DPDPA requires Data Fiduciaries to notify the Data Protection Board of a personal data breach "in such manner and within such period as may be prescribed."
Expected requirements based on draft rules:
- Initial notification within 72 hours of becoming aware of the breach
- Detailed report following investigation
- Notification to affected individuals where the breach poses significant risk
Building Basic Breach Response Capability
You do not need a large security team to be prepared. A basic incident response plan covers:
- Detect — How will you know a breach has occurred?
- Contain — How do you stop the breach from spreading?
- Assess — What data was affected, how many individuals, what is the risk?
- Notify — Who do you notify and when?
- Remediate — How do you prevent recurrence?
Practical Steps for Indian SMEs
- Know where all your personal data is stored
- Ensure access logs exist for systems containing personal data
- Have a contact for reporting security incidents internally
- Know who at your organisation would make the notification decision
- Have draft notification templates ready
- Ensure your cloud and SaaS vendors have breach notification SLAs in their contracts
Penalties for Breach Notification Failure
Up to ₹200 crore for failing to notify the Data Protection Board of a breach. This is separate from penalties for inadequate security safeguards, which can reach ₹250 crore.
Last reviewed: March 2026
Legal baseline: DPDP Rules, 2025 notified on 14 November 2025, with phased commencement.
This page is for educational purposes and does not constitute legal advice.