Quick answer: the major privacy laws, including Europe's GDPR, California's CCPA and India's Digital Personal Data Protection Act, share a core. Collect only what you need, explain why, get valid consent where required, let people see, correct and delete their data, secure it, and report breaches promptly. Build these as product features and you are most of the way there in every region.

If you sell software internationally, the alphabet soup of privacy laws can feel overwhelming. Europe has one law, California another, India a third, and new ones keep arriving. Legal teams argue about details. Engineers just want to know what to build.

Fortunately the laws agree on more than they differ. This guide translates the shared ideas into product decisions. It is general information, not legal advice, and your own advisor should confirm obligations for your business.

The three laws in one paragraph each

GDPR is the European Union's General Data Protection Regulation. It applies to organisations that handle personal data of people in the EU, wherever the organisation is based. It is detailed, with significant penalties.

CCPA is the California Consumer Privacy Act, as expanded later, giving California residents rights to know, delete and opt out of the sale or sharing of their personal information.

DPDP is India's Digital Personal Data Protection Act of 2023. It sets out duties for organisations that process digital personal data, centred on consent, notice, purpose limitation and individual rights.

What they have in common

1. Know what you collect and why

Keep a simple inventory: which personal data you hold, where it lives, who can access it and which purpose it serves. You cannot protect or delete what you cannot find.

2. Collect the minimum

Ask for what the feature needs. If you do not need a birth date or a phone number, do not request them. Data you never collect cannot be leaked.

3. Be clear and honest

Give people a plain language notice at the point of collection explaining what you gather, why and who sees it. Hidden purposes and confusing forms are exactly what regulators look for.

4. Handle consent properly

  • Consent should be specific, informed and freely given. Pre ticked boxes and bundled agreements do not count under the stricter laws.
  • Make withdrawing as easy as giving.
  • Record when and how consent was given.
  • Do not load marketing or analytics trackers before the visitor chooses where consent is required.

5. Give people control of their data

Expect requests to:

  • See what you hold, often with a copy in a usable format.
  • Correct mistakes.
  • Delete their data, with some exceptions.
  • Opt out of selling or sharing, or of certain uses such as direct marketing.

Build a self service screen or a clear internal process, with a time limit for responses. Deletion must reach backups and connected tools in a reasonable time, so plan for it.

6. Keep data only as long as needed

Define retention periods and delete or anonymise data after them. Automatic clean up jobs are a feature worth building.

7. Secure it properly

Encryption, access control, logging and regular testing are expected under all three. See our security checklist and the guidance on API security.

8. Report breaches quickly

Laws set deadlines for notifying authorities and sometimes individuals. Under GDPR the notice to the regulator is generally due within 72 hours of becoming aware. Prepare a response plan and contact list before an incident, not during one.

9. Manage vendors carefully

Analytics tools, email services, payment providers and AI services all process personal data on your behalf. Sign data processing agreements, review where data is stored and limit what you send.

10. Take extra care with children and sensitive data

Health, financial, biometric and children's data carry stricter rules in most regions. Treat them with additional safeguards and, where required, parental consent.

A feature list for your backlog

  1. A privacy centre where users view, export and delete their data.
  2. A consent banner and preference manager that blocks non essential scripts until permission is given.
  3. A data inventory and a retention schedule with automated clean up.
  4. Audit logs showing who accessed personal data.
  5. A breach response runbook and contact list.
  6. Data processing agreements with every vendor that touches personal data.
  7. A privacy review step in your release process for new features.

Privacy by design saves money

Retrofitting privacy into a finished product is far more expensive than designing it in. Add the questions "what data do we need" and "who can see it" to every design discussion, and the rest follows naturally. It also helps with enterprise sales, where customers send long security and privacy questionnaires.

If you are building for customers in more than one region, our team can help design the consent, data rights and retention features into your product from the start. Learn more about our custom software development work, or read about our GDPR and data protection commitments.

Frequently Asked Questions

Does GDPR apply to companies outside Europe?

Yes, if they offer goods or services to people in the EU or monitor their behaviour. Location of the company does not remove the obligation.

What is the difference between GDPR and CCPA?

GDPR generally requires a legal basis such as consent before processing personal data and gives broad rights to individuals. CCPA focuses on transparency, deletion and the right to opt out of the sale or sharing of data for California residents.

What does India's DPDP Act require?

It requires clear notice, valid consent for processing personal data, purpose limitation, security safeguards, honouring individual rights and handling breaches responsibly. Confirm current rules and timelines with a qualified advisor.

Do I need a cookie banner?

If you use non essential cookies or trackers for visitors in regions that require consent, yes. The banner must let people refuse as easily as accept, and trackers should not load before consent.