Privacy Concerns in DNA Testing Examination
Updated on April 19, 2024
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Privacy Concerns in DNA Testing Examination

The rise of direct-to-consumer (DTC) genetic testing has changed how people think about and access information about their ancestry, health risks, and personal traits. However, as the popularity of these services grows, so do concerns about the privacy and security of genetic data.

A study published in the journal PLOS ONE found that 36.5% of respondents reported that they had “A lot” of concern. 40.3% were “Somewhat” concerned, and 23.2% reported “Very little” concern about direct-to-consumer genetic testing.

This article examines the privacy concerns in DNA testing via statistics, highlighting the extent of consumer apprehension, demographic variations, and the impact on consumer behavior in the genetic testing market.

Key Statistics on Privacy Concerns

Extent of Consumer Concern

The concern about privacy in DNA testing is significant among consumers, as evidenced by various studies and surveys:

  • 50% of respondents are extremely or very concerned that for-profit DNA testing companies will share their genetic information without consent.
  • 36% express the same level of concern regarding medical researchers, and 32% worry about medical doctors sharing their genetic information without consent
  • 87% of respondents believe it is very important, and 9% somewhat important, that it be illegal for insurers and employers to get direct-to-consumer (DTC) genetic information
  • 74% of respondents feel it is very important, and 20% somewhat important, for strict regulations on how companies can use and share DTC genetic information

Demographic Variations in Privacy Concerns

Privacy concerns regarding DNA testing vary across demographic groups, with notable differences in attitudes based on age, race, ethnicity, and political affiliation:

  • 56% of adults ages 50 and older find it acceptable for DNA testing companies to share genetic data with law enforcement, compared to 42% of those under 50.
  • Nonwhite Americans are far more likely than whites to say they were surprised by what their DNA results showed about their ancestors, which may reflect privacy concerns or unexpected revelations.
  • Republicans and Republican-leaning independents are more likely than Democrats and Democrat-leaning independents to find it acceptable for DNA testing companies to share customers’ genetic data with law enforcement agencies (52% vs. 47%).
  • A study on socioeconomic status and interest in genetic testing found that individuals who are not White and/or Hispanic had much higher odds of reporting high interest in genetic testing than White and non-Hispanic participants. However, individuals with lower socioeconomic status had less interest in genetic testing, which could imply concerns about privacy, among other factors.

Specific Privacy Concerns

Consumers have a range of specific privacy concerns related to DNA testing, including data security, law enforcement access, secondary use of data, and the impact on family members.

Data Security and HackingWorry about unauthorized access to genetic data, which is deeply personal and cannot be changed. In 2018, the genetic testing company MyHeritage reported a data breach that included email addresses and hashed passwords of its users.
Law Enforcement AccessApprehension about law enforcement agencies accessing genetic data without consent, as in the Golden State Killer case, where DNA from a genealogy company was used to solve the crime, raising questions about privacy and consent.
Secondary Use of DataConcern about using genetic data beyond the initial purpose, such as for research or pharmaceutical development. For instance, 23andMe sold the rights to a new drug developed using customers’ combined data, although no individual client’s private genetic information was identifiable in this licensing agreement.
Impact on Family MembersImplications for the privacy of blood relatives who may not have consented to or are unaware of the genetic testing. Since genetic data can reveal information about family members, there are concerns about the privacy implications for those individuals.

Impact on Consumer Behavior

The impact of privacy concerns on consumer behavior in the genetic testing market is complex, with statistics revealing a mix of hesitancy and acceptance:

  • About half of Americans (48%) say it is acceptable for DNA testing companies to share customers’ genetic data with law enforcement agencies for solving crimes, while a third find it unacceptable, and 18% are unsure
  • Among those who have used mail-in DNA testing services, 51% believe it is acceptable for their genetic data to be used by law enforcement, compared to 48% of those who have not used these services
  • The majority of DTC genetic testing company privacy statements are long, vague, and written at a college reading level, making it difficult for consumers to understand and exercise their genetic privacy rights
  • A survey by the Tulane Journal of Technology and Intellectual Property found that most privacy statements from DTC genetic testing companies do not comply with international transparency guidelines related to confidentiality, privacy, and data use, which can affect consumer trust and behavior
  • Despite privacy concerns, the global market for DTC genetic testing is projected to hit $2.5 billion by 2024, indicating continued growth


The statistics behind privacy concerns in DNA testing reveal a complex landscape of consumer apprehension, demographic variations, and behavioral impacts. While many are concerned about the sharing of their genetic information without consent, the acceptance of certain uses, such as for law enforcement purposes, shows that it’s a pretty complicated issue.

Since there aren’t too many federal laws that address the privacy issues surrounding genetic testing, many are lobbying for clearer regulations and consumer education.

A study published in the journal Nature Communications in 2009 demonstrated that researchers could correctly identify between 40 and 60 percent of all participants in supposedly anonymized genetic studies, raising concerns about the effectiveness of anonymization and potentially impacting willingness to participate in genetic testing.

As the genetic testing market continues to grow, it is crucial to balance the benefits of these services and the protection of individual privacy rights. Addressing privacy concerns in DNA testing will require a collaborative effort among policymakers, genetic testing companies, and consumers.

Updated on April 19, 2024
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7 sources cited
Updated on April 19, 2024
  1. Genetic Testing: Ancestry Interest, But Privacy Concerns.” The Associated Press-NORC Center for Public Affairs Research, 2018. 
  2. Perrin, Andrew. “About Half of Americans Are OK With DNA Testing Companies Sharing User Data With Law Enforcement.” Pew Research Center, 2020. 
  3. Moran, Jacqueline. “Privacy Perspectives on Direct-to-Consumer Genetic Testing in the Era of Big Data: Role of Blockchain Technology in Genomics.”  Tulane Journal of Technology and Intellectual Property, 2020.
  4. Graf, Niki. “Mail-in DNA Test Results Bring Surprises About Family History for Many Users.” Pew Research Center, 2019.
  5. Whelan, Lisa. “The Privacy Problem with DNA Testing.” Proton. .
  6. Shah, Alaap. “Privacy Concerns Loom as Direct-to-Consumer Genetic Testing Industry Grows.” Health Law Advisor, 2019. 
  7. Dusic, E.J., et al. “Socioeconomic Status and Interest in Genetic Testing in a US-Based Sample.” Healthcare, 2022.
Angela Natividad
Angela Natividad
Content Contributor
Angela is a full-time digital content manager and editor for Know Your DNA. She also contributes freelance articles to several local and international websites when she has the time. She's always been a voracious believer in finding the truth and ensuring the science is sound.