What is a Data Breach?

A personal data breach under the DPDP Act, 2023 is any unauthorised processing, accidental disclosure, acquisition, sharing, use, alteration, destruction, or loss of access to personal data — that compromises its confidentiality, integrity, or availability.

In plain terms: if personal data ends up where it shouldn’t, gets changed without authorisation, or becomes inaccessible when it should be available — it is a breach.

How Does a Breach Happen?

Breaches can occur in many ways — through external attacks, internal negligence, or simple system failures.

Example 1 — Cyberattack A hospital’s patient database is hacked. Names, phone numbers, diagnoses, and medical histories of thousands of patients are stolen and published online. This is a breach of confidentiality.

Example 2 — Accidental Disclosure An HR executive accidentally emails salary slips of 500 employees to the wrong mailing list. The data was not stolen — but it was disclosed without authorisation. Still a breach.

Example 3 — Insider Threat A bank employee downloads and sells customer account details to a third party for personal gain. This is unauthorised processing — a serious breach.

Example 4 — Ransomware Attack A company’s servers are encrypted by ransomware. All customer data becomes inaccessible. Even though data was not stolen, loss of availability is a breach under the Act.

Example 5 — Third-Party Vendor Failure A Data Fiduciary shares customer data with a cloud service provider (Data Processor). The vendor suffers a security failure and the data is exposed. The Data Fiduciary remains accountable.

What Must a Data Fiduciary Do After a Breach?

The Act imposes a strict response obligation:

Notify immediately — Inform every affected Data Principal about the nature of the breach, its likely consequences, and the steps being taken to contain it.

Report to the Board — Intimate the Data Protection Board of India with full details: the root cause, timeline of events, persons responsible, mitigation measures taken, and steps to prevent recurrence.

What Are the Consequences?

Failure to implement safeguards that could have prevented the breach attracts a penalty of up to ₹250 crore. Failure to notify the Board or affected individuals attracts up to ₹200 crore — both imposed by the Data Protection Board.

The Key Takeaway

A breach is not just a hacking incident. Sending data to the wrong person, losing a device with unencrypted data, or a vendor’s server going down — all can qualify. The obligation to protect data, and to respond swiftly when things go wrong, rests squarely on the Data Fiduciary.

Disclaimer

The contents of this post are intended for general awareness and informational purposes only. They do not constitute legal opinion, professional advice, consultancy, statutory interpretation, or a recommendation to act in any particular manner.

The Digital Personal Data Protection Act, 2023, related rules, notifications, regulatory guidance and judicial interpretations may evolve from time to time. The applicability of the law may also vary depending on the facts, sector, nature of data processing, organisational role, contractual terms and compliance framework.

Readers should not rely solely on this post for making legal, business, HR, technology, data-processing or compliance decisions. Specific advice from a qualified legal, privacy, cybersecurity, governance or compliance professional should be obtained before acting on any matter discussed.

The author / publisher shall not be responsible for any loss, liability, claim, penalty or consequence arising from reliance on the contents of this post without independent professional advice.