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Age verification system

Measure used to restrict access by age


Measure used to restrict access by age

An age verification system, also known as an age gate, is any technical system that externally verifies a person's age. These systems are used primarily to restrict access to content classified, either voluntarily or by local laws, as being inappropriate for users under a specific age, such as alcohol, tobacco, gambling, video games with objectionable content, pornography, or to remain in compliance with internet privacy laws that regulate the collection of personal information from minors, such as COPPA in the United States. Age verification systems have been criticized for privacy and computer security risks.

Age verification substantially increased in 2023–2024, with the passage of the Online Safety Act 2023 in the UK, a law in France, laws in eight U.S. states including Texas and Utah, and proposals at the federal level in the US, Canada, Denmark, and the EU.

Online age verification is distinct from the mandatory online identity registration used in some countries with techno-authoritarianism.

Methods

Honor system

The most basic form of age verification is to require a person to input their date of birth on a form. However, this depends on an honor system that assumes the honesty of the end user. The person may, for instance, be a minor who fraudulently inserts a valid date that meets the age criteria, rather than their own. For this reason the system has been described as ineffective.

Parental controls

Parental controls enable parents to apply internet filters to restrict their children's access to content they deem inappropriate for their age.

Credit card verification

Age verification systems requiring people to provide credit card information depend on an assumption that the vast majority of credit card holders are adults, because U.S. credit card companies did not originally issue cards to minors. Additionally, a minor may still attempt to obtain their parent's credit card information, or persuade or defraud users into divulging their credit card number to an individual to use for their own purposes, defeating the stated purpose of the system.

In 2005, Salvatore LoCascio pleaded guilty to charges of credit card fraud; one of his schemes had involved using credit card-based age verification systems to charge users for "free" tours of adult entertainment websites.

Federated identification

Aylo, a major operator of porn websites, operates an age verification provider known as AgeID. First introduced in Germany in 2015, it uses third-party providers to authenticate the user's age, and a single sign-on model that allows the verified identity to be shared across any participating website.

Face recognition

The Australian government has proposed countering identity fraud through the use of a facial recognition system that compares individuals with official identification photos.

Facial age estimation

Facial age estimation uses machine learning to estimate the user's age by analysing their facial features in a selfie while ensuring that they are a real person and not a photograph or wearing a mask by using a liveness test.

Zero-knowledge proof

Zero-knowledge proofs verify a person's age without the person disclosing their identity, either to the receiver, such as a business, or the verifying entity, like a government that issues a passport.

Knowledge

The adult-oriented video game franchise Leisure Suit Larry presented players with trivia questions that, in the opinion of franchise creator Al Lowe, a child would not know the answer to (such as, for example, "All politicians are: a. hard-working, b. honest, c. on the public payroll"), in order to launch the game (although this can be bypassed with a keyboard shortcut).

Trade association

The sector is represented by the Age Verification Providers Association which was founded in 2018 and had grown to have 27 members by 2023.

References

References

  1. (2015-02-18). "Letting Your Kids Play in the Social Media Sandbox". The New York Times.
  2. Goldman, Eric. (2025). "The "Segregate-and-Suppress" Approach to Regulating Child Safety Online". SSRN Electronic Journal.
  3. (30 June 2023). "France Senate passes legislation requiring age verification for minors on social media".
  4. "Age Verification Bills – Action Center".
  5. (3 April 2023). "Porn sites would have to verify users are over 18 under federal online safety plans". The Globe and Mail.
  6. (13 June 2023). "Denmark to curb children's data collection by tech giants".
  7. (15 May 2023). "Online age verification is coming, and privacy is on the chopping block".
  8. G'sell, Florence. (2025). "Digital Authoritarianism: From State Control to Algorithmic Despotism". Oxford University Press.
  9. Debruge, Peter. (2013-05-02). "Trailers Jump on the Age-Restricted Red-Band Wagon". Variety.
  10. "Inappropriate content: protecting your child {{!}} Internet Matters". [[Internet Matters]].
  11. "Why Online Age Checks Don't Work". Wired.com.
  12. (1999-01-21). "Witness: Credit cards not age verifying tools". CNET.
  13. Milmo, Dan. (2005-02-16). "US gang admits $650m internet porn fraud".
  14. Reilly, Claire. "Government now identifying Australians with biometric face-matching".
  15. (2022). "Computer Security – ESORICS 2022".
  16. Hogge, Beckey. "How to Catch a Humbert – Could a "yoof" questionnaire help identify internet paedophiles?". NewStatesman.com.
  17. Taylor, Josh. (2023-08-30). "Australia will not force adult websites to bring in age verification due to privacy and security concerns". The Guardian.
  18. (3 May 2024). "The Australian government wants to stop minors accessing online pornography. But how will the trial work?". [[The Guardian]].
  19. (1 May 2024). "Online age verification pilot gets green light".
  20. (10 September 2024). "Albanese Government set to introduce minimum age for social media access". [[Prime Minister of Australia]].
  21. (10 September 2024). "Australia plans to ban children from social media. Is checking and enforcing an age block possible?". [[The Guardian]].
  22. (10 September 2024). "Debate rages as Australia set to ban children from social media". [[1News]].
  23. (10 September 2024). "Australia plans social media minimum age limit, angering youth digital advocates". [[Reuters]].
  24. (7 November 2024). "Labor backs 16 as the minimum age to use social media ahead of national cabinet meeting". [[Australian Broadcasting Corporation]].
  25. (9 November 2024). "Australia plans social media ban for under-16s". [[BBC News]].
  26. (21 November 2024). "Australia launches 'landmark' bill to ban social media for children under 16". [[Reuters]].
  27. Taylor, Stephanie. (2024-05-28). "Could a Senate bill cause age verification laws to apply to Netflix? Experts say yes". Canadian Press.
  28. Geist, Michael. (2024-05-24). "Filibuster of Bill S-210 Confirmed: Conservative MPs Put Privacy and Free Speech Online At Risk Over Release of Report - Michael Geist".
  29. Geist, Michael. (2023-12-14). "The Most Dangerous Canadian Internet Bill You've Never Heard Of Is a Step Closer to Becoming Law".
  30. "存档副本".
  31. "Landesrecht BW JMStV {{!}} Landesnorm Baden-Württemberg {{!}} Gesamtausgabe {{!}} Gesetz zum Staatsvertrag über den Schutz der Menschenwürde und den Jugendschutz in Rundfunk und Telemedien (Jugendmedienschutz-Staatsvertrag - JMStV) vom 4. Februar 2003 {{!}} gültig ab: 08.02.2003".
  32. "Altersverifikationssysteme - KJM".
  33. Hern, Alex. (2019-04-17). "Online pornography age checks to be mandatory in UK from 15 July". The Guardian.
  34. Manthorpe, Rowland. (2019-03-06). "Why the UK's porn block is one of the worst ideas ever".
  35. "Pornhub owner may become the UK's gatekeeper of online porn". Engadget.
  36. "Pornhub's owner reveals its age verification tool for the UK". Engadget.
  37. Kleinman, Zoe. (2018-03-06). "Porn check critics fear data breach". BBC News.
  38. Waterson, Jim. (2019-10-16). "UK drops plans for online pornography age verification system". The Guardian.
  39. (2020-02-10). "Statement: 'Specially restricted material' and Age Verification Guidance for Providers of On-Demand Programme Services".
  40. (2021-10-14). "Information Commissioner's opinion: Age Assurance for the Children's Code".
  41. "PAS 1296 - Age Check Certification Scheme".
  42. "Standards for Age Verification {{!}} AVPA".
  43. "Online Safety Act 2023".
  44. (2025-07-24). "The UK is launching 'porn age checks'. This is what will happen".
  45. Roth, Emma. (2025-07-10). "Bluesky is rolling out age verification in the UK".
  46. "Major pornography sites to introduce 'robust' age verification for UK users".
  47. (2025-06-26). "Age checks for online safety – what you need to know as a user".
  48. Raol, Jay. (2021-10-01). "Age Verification Solutions in alcohol industry - Verifying your customers".
  49. Millar, Lindsey. (2023-04-05). "Arkansas House wants you to show ID to use social media".
  50. (23 March 2023). "Utah governor signs parental consent laws for minor social media use".
  51. (2023-05-03). "Utah law requiring porn sites verify user ages takes effect".
  52. Tavss, Jeff. (August 1, 2023). "Judge dismisses lawsuit challenging Utah porn site age-verification law".
  53. Metz, Sam. (August 2, 2023). "Utah law requiring age verification for porn sites remains in effect after judge tosses lawsuit".
  54. Miller, Ken. (September 1, 2023). "A federal judge strikes down a Texas law requiring age verification to view pornographic websites".
  55. Bowman, Emma. (September 1, 2023). "A Texas law requiring age verification on porn sites is unconstitutional, judge rules".
  56. Thompson, Kelsey. (2023-11-19). "U.S. circuit court upholds Texas pornography age verification law".
  57. Quinn, Melissa. (July 2, 2024). "Supreme Court agrees to review Texas age verification law for porn sites". [[CBS News]].
  58. Totenberg, Nina. (2025-06-27). "Supreme Court sides with Texas' age verification law for porn sites". NPR.
  59. (2022-02-08). "Porn sites in UK will have to check ages in planned update to online safety bill". The Guardian.
  60. (2022-10-14). "Members - AVPA".
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