What is Data Minimization? | DataGrail

As modern businesses grow, they need to collect data from their existing and potential customers to optimize their operations and service delivery. However, data collection and processing activities always remain at risk of violating privacy principles and frameworks, which results in a loss of consumer trust and potential regulatory penalties. This is especially true when more consumer data than necessary is collected, processed, or stored.

Whether your business operates in Europe, the United States, or other geographic regions, data minimization can help significantly reduce privacy risks to your customers’ data (and associated compliance risks).

So, what is data minimization?

This blog will break down the principles of data minimization and how they apply to your business and affect your data privacy vs data security goals.

Data Minimization Explained

The data minimization definition boils down to implementing data collection, processing, and retention practices that are driven by and restricted to a specified purpose, which ultimately relies on understanding data collection objectives vis-a-vis business needs.

However, implementing a data minimization strategy does not exclusively involve reducing how much consumer data you collect, process, or retain; it also extends to the data privacy principles along which your business operates day to day, which can include making customers decide to opt out or opt in when providing personal information or consent.

What is Data Minimization?

Data minimization refers to collecting only the data necessary for completing business tasks.

This means that an organization implementing data minimization principles must ensure that the data collected, processed, or retained does not exceed business needs and is justified by the reasonable, “proportional” purposes for which it processes consumers’ data.

Data minimization is emphasized in the internationally-recognized Fair Information Practice Principles (FIPPs) and has been codified in Europe’s data privacy regulations, particularly the General Data Protection Regulation (GDPR). Article 5(1)(c) of the GDPR defines data minimization as the process of limiting the collection, processing, or retention of subjects’ personal data to the “purposes for which they are processed.”

However, data minimization is not exclusive to the EU’s framework. Nearly all privacy regulations—such as the California Privacy Rights Act (CPRA)—contain similar minimization language and requirements.

In other words, your business should only collect, process, or retain the data explicitly required to achieve your defined business objectives. Interacting with more data than is necessary immediately exposes your organization to elevated privacy (and cybersecurity) risks. As a result, that increased exposure also further complicates data privacy compliance obligations.

Why is Data Minimization Important?

Meeting compliance obligations (and avoiding penalties and fines) is always an effective motivational tool for businesses, but is data minimization important for other reasons? It absolutely is.

At the most fundamental level, the greater quantity you have of something, the more complex managing and protecting it becomes. Even in digital environments, this remains true.

So, data minimization helps businesses:

Determine what data to collect, process, and store
Determine whether additional, unnecessary data is included in those activities
Limit the amount of sensitive data categories requiring increased compliance burdens
Ensure operations and various processes adhere to defined scopes
Reduce how much time data management, privacy, and security responsibilities take
Reduce privacy risks and compliance burdens overall
Reduce operational costs (e.g., cloud storage requirements) and data disorganization

Furthermore, consumers are increasingly aware of and concerned with the efforts businesses take to respect their privacy—particularly regarding their personal data. And by minimizing the personal information collected, processed, or stored, businesses cultivate greater consumer trust and loyalty.

Data Minimization Use Cases—Sensitive Data Categories, Automated Collection, and Retention

Although there are myriad use cases illustrating the importance of data minimization, three examples are particularly apt:

Most privacy laws and regulations distinguish between standard categories of personal data and “sensitive categories,” requiring elevated protection and consideration before and during any collection, processing, or storage.
Businesses that collect personal data from consumers via automated means may inadvertently collect more than necessary. Sifting through these large, disorganized data repositories for day-to-day activities and compliance needs without defined criteria for retention or disposal is especially challenging.
Data minimization helps identify data that may have been retained longer than necessary or collected unnecessarily. If storage duration exceeds a reasonable length and there’s no valid reason to continue retaining consumers’ personal data, your business is better off deleting it and limiting future data collection events to only the data required for business tasks.

With an established data minimization process, your business can limit how much data—standard or sensitive—it collects from consumers and streamline operations, especially with respect to ongoing management and compliance obligations.

Benefits of Data Minimization

Aside from the reasons listed above for why data minimization practices are important, other potential benefits include:

Streamlined data searches – The more irrelevant details you have in your data repositories, the more difficult it is to find crucial data.
Maximized internal bandwidth – If your staff is constantly sifting through large amounts of user data to identify unnecessary data for deletion, a data minimization strategy can help reclaim their bandwidth.
Customer request fulfillment – Privacy regulations (e.g., data minimization GDPR, CPRA) generally provide customers with the right to request the modification or deletion of their personal data within your systems. Data minimization helps reduce request instances and better enables professionals to find and correct or delete data.

Most importantly, implementing data minimization principles year-round reduces the chances of your business failing to comply with privacy regulations. Failure to meet data privacy requirements can result in criminal violations along with potential fines, penalties, and litigation.

Data Minimization Across Privacy Frameworks Like the GDPR

Besides the GDPR, data privacy regulations currently active across the United States require businesses to implement data minimization principles.

Although these requirements may vary with each regulation, businesses are expected to protect consumer data privacy when collecting, processing, or retaining sensitive personal information and data.

California Privacy Rights Act (CPRA)

Of the privacy regulations in the United States, the CPRA has one of the most defined data minimization requirements. Under the CPRA, businesses are required to notify consumers about:

How long consumers’ data will be processed or retained
Why each category of data will be processed or retained

Virginia Consumer Data Protection Act (VCDPA)

The VCDPA requires businesses to limit the collection and processing of consumers’ personal data to that which is “adequate, relevant, and limited to what is necessary in relation to the specific purposes listed” within the regulation.

Colorado Privacy Act (CPA)

The CPA’s data minimization requirements are similar to those in the VCDPA, requiring businesses to limit sensitive data collection to that which is “reasonably necessary” and ensure it is adequate and relevant to the purposes for which the business collects it.

Connecticut Data Privacy Act (CDPA)

Like the laws explored above, the CDPA outlines similar data minimization requirements for businesses that collect personal data from consumers.

Utah Consumer Privacy Act (UCPA)

Data minimization requirement under the UCPA calls for businesses to specify why they collect data from consumers via a privacy notice.

Regardless of which privacy regulations apply to your business, data minimization will help you protect sensitive consumer data from privacy risks.

Implement Data Minimization with Datagrail

Adopting data minimization principles will help you continually meet your compliance obligations and protect your customer’s data privacy—differentiating your business as one committed to respecting individuals’ privacy and customer trust. But data minimization also enables your business to streamline all digital operations by preventing the accumulation of data detritus.

A strong data privacy foundation starts with knowing which data to collect, store, or process while remaining compliant with legal and regulatory requirements. And Datagrail’s platform can help you implement data minimization at scale.

Table of Contents