Colorado lawmakers have introduced what may be the most ambitious—and most invasive—piece of child online safety legislation in the country. Senate Bill 26-051, filed in the state’s General Assembly, would require operating system makers like Apple and Google to build age verification directly into the software that powers every smartphone, tablet, and computer sold or operated in the state. While proponents argue it would protect children from harmful online content, privacy advocates and technology experts warn that the bill could create a surveillance architecture with consequences far beyond its stated intentions.
The bill, sponsored by Senators Hansen and Pelton and Representatives Pugliese and Willford, would mandate that covered operating systems include a mechanism to verify whether a user is a minor. Under the legislation, operating system providers would be required to offer an “age assurance” system that allows parents or guardians to designate accounts as belonging to minors, triggering a set of default protections. These protections include blocking access to age-restricted content, disabling features that facilitate contact from unknown adults, and limiting exposure to algorithmic recommendation systems, according to the text of SB 26-051 posted on the Colorado General Assembly’s website.
Pushing Verification Down to the OS Layer
What distinguishes Colorado’s approach from other state-level efforts is where the verification occurs. Most age verification laws—such as those passed in Louisiana, Texas, and Utah—target individual websites or platforms, requiring them to confirm a user’s age before granting access to certain content. Colorado’s bill shifts that burden to the operating system itself, meaning Apple’s iOS, Google’s Android, and Microsoft’s Windows would be the entities responsible for determining and enforcing a user’s age status. As PCMag reported, this represents a fundamentally different regulatory strategy, one that treats the operating system as a gatekeeper for all digital activity rather than placing the onus on individual apps or websites.
The logic, from a policy perspective, has a certain appeal. Children access harmful content across hundreds of apps and websites, and enforcing age checks at each point of entry has proven difficult and inconsistent. By embedding verification at the OS level, Colorado’s sponsors believe they can create a single, unified layer of protection. But that same centralization is precisely what alarms civil liberties groups and technologists. A system that knows whether every user on a device is a child or an adult—and adjusts content access accordingly—necessarily collects and processes sensitive identity information at the most fundamental layer of a person’s digital life.
A Privacy Architecture That Could Outlive Its Purpose
The privacy implications of SB 26-051 are significant and multi-layered. First, there is the question of how age is verified. The bill references “age assurance” methods, a term that encompasses a range of techniques from government ID upload to facial age estimation using artificial intelligence. Each of these methods carries its own risks. Government ID verification requires users to submit documents that, if stored or breached, could expose them to identity theft. AI-based facial estimation, meanwhile, requires biometric data collection—a category of personal information that, once compromised, cannot be changed like a password.
Second, embedding this verification at the operating system level means that the data flows through the hands of the world’s largest technology companies. Apple, Google, and Microsoft would become custodians of age-related identity data for potentially every resident of Colorado. While the bill includes provisions requiring that age data be handled with care and not retained longer than necessary, enforcement of such provisions has historically been weak. Data minimization promises have been made—and broken—by major technology firms repeatedly, as documented in Federal Trade Commission enforcement actions against companies including Google and Amazon.
The Slippery Slope of Device-Level Content Control
Perhaps the most troubling dimension of the bill is the precedent it sets for device-level content filtering. Once an operating system is equipped with the technical infrastructure to verify age and restrict content accordingly, that same infrastructure can be repurposed. Governments could pressure OS makers to expand the categories of restricted content. What begins as a mechanism to shield minors from pornography or predatory contact could, in theory, be extended to restrict access to political speech, reproductive health information, or LGBTQ+ resources—categories of content that have already been targeted by legislative efforts in other states.
This is not a hypothetical concern. In 2021, Apple announced and then shelved a plan to scan photos on users’ devices for child sexual abuse material. The backlash was fierce, with security researchers and organizations like the Electronic Frontier Foundation warning that the system could be co-opted by authoritarian governments to surveil dissidents. Colorado’s bill would effectively mandate a version of that same on-device gatekeeping, but with a legislative mandate rather than a corporate policy choice. The difference matters: a company can reverse a policy decision, but a law creates a durable obligation that persists regardless of shifting corporate leadership or public sentiment.
How the Bill Would Work in Practice
Under SB 26-051, when a new device is activated or an operating system is updated, the OS provider would be required to present the user with an age verification step. Parents or guardians would be able to designate accounts as belonging to minors under 16. Once an account is flagged as belonging to a minor, the operating system would enforce a set of default restrictions. These include limiting the minor’s ability to receive communications from accounts they have not previously interacted with, restricting access to content deemed age-inappropriate, and disabling certain data collection practices such as geolocation tracking and targeted advertising directed at the minor, according to the bill text.
The bill also imposes obligations on “covered application providers”—essentially, app developers whose products are distributed through app stores on covered operating systems. These developers would be required to respect the age signals sent by the operating system and adjust their services accordingly. An app that receives a signal that the user is a minor would be prohibited from serving targeted ads, recommending content through algorithmic systems optimized for engagement, or enabling direct messaging from unknown users. Violations would be enforceable by the Colorado Attorney General, with civil penalties for noncompliance.
Industry Pushback and the First Amendment Question
Technology industry groups have already signaled opposition. NetChoice, a trade association representing companies including Google, Meta, and Amazon, has challenged age verification laws in multiple states on First Amendment grounds. Federal courts have, in several cases, sided with the industry. In 2024, a federal judge blocked enforcement of parts of California’s Age-Appropriate Design Code Act, finding that its content-restriction provisions likely violated the First Amendment. Similar challenges have been filed against laws in Texas and Ohio. Colorado’s bill, by operating at the OS level rather than the platform level, may face an even steeper constitutional challenge, since it would effectively require that every user’s identity be verified before they can freely access lawful content on their own device.
The First Amendment issues are compounded by the bill’s potential impact on adults. Age verification systems are not perfect, and false positives—instances where adults are incorrectly flagged as minors or are denied access to content because they decline to submit identity documents—are an inevitable byproduct. Adults who value their anonymity, including journalists, activists, domestic violence survivors, and whistleblowers, may find themselves forced to choose between surrendering their identity to a technology company and losing access to content or features on their own devices. As PCMag noted, this tension between child safety and adult privacy rights is at the heart of the national debate over age verification.
A National Trend With Colorado at the Vanguard
Colorado is not acting in isolation. More than a dozen states have passed or are considering age verification requirements for online content. But most of those laws target specific categories of websites—primarily adult content platforms. Colorado’s approach is categorically different in scope and ambition. By targeting operating systems, the bill would affect not just one category of content but the entire digital experience of every user in the state. It would also place Colorado in direct regulatory conflict with the federal government if Congress moves forward with its own proposals, such as the Kids Online Safety Act (KOSA), which takes a platform-centric rather than OS-centric approach.
The bill was introduced in January 2025 and has been assigned to the Senate Business, Labor, and Technology Committee. It has bipartisan sponsorship, reflecting the broad political appeal of child safety as an issue. But bipartisan support does not immunize legislation from constitutional scrutiny or practical criticism. The question Colorado’s lawmakers must answer is whether the real-world privacy costs of building an age verification layer into every operating system are proportionate to the child safety benefits—and whether those benefits can be achieved without creating an infrastructure that could be turned against the very people it is meant to protect.
For now, the bill remains in committee, and its fate will depend on testimony from technology companies, privacy advocates, law enforcement, and parents. But whatever happens in Colorado, the debate it has sparked—about where age verification should occur, who should control it, and what data should be collected in the process—will shape technology policy for years to come. The stakes extend well beyond the Rocky Mountain State.
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