Data protection law for small businesses: the basics you need to know without hiring a lawyer

Published September 6, 2026 · 5 min read

Edson Feitosa de Oliveira Junior Founder & Lead Engineer · PruPru Digital Services

Data protection regulations govern how companies must collect, use, and store personal data of customers, employees, and suppliers — name, email, phone, ID number, and any other information that identifies a person. This text is a general overview and does not replace specialized legal guidance, especially if your company handles a large volume of sensitive data.

Good practices any small business can apply

• Only collect the data actually necessary for the service provided, nothing more
• Make it clear on the site (in a simple privacy policy) what the data is used for
• Protect access to stored data with a strong password and control over who can see what
• Have a defined process to delete data when a customer requests it
• Avoid storing sensitive data (credit card, passwords) without real need

Site forms and email marketing

If your site has a contact form or newsletter, it's important to make clear how the data will be used, and avoid sending emails to anyone who never gave explicit consent. This alone already reduces a good part of the risk related to data collection via the site.