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UK to “encourage” Apple and Google to put nudity-blocking systems on phones

Government seeks “nudity-detection algorithms” in iOS and Android, report says.

Jon Brodkin | 106
A smartphone wrapped in a metal chain and padlock
Credit: Getty Images | Eshma
Credit: Getty Images | Eshma

The UK government reportedly will “encourage” Apple and Google to prevent phones from displaying nude images except when users verify that they are adults.

The forthcoming push for nudity-blocking systems was reported by the Financial Times today. The report said the UK won’t institute a legal requirement “for now.” But asking companies to block nude images could be the first step toward making it mandatory if the government doesn’t get what it wants.

“The UK government wants technology companies to block explicit images on phones and computers by default to protect children, with adults having to verify their age to create and access such content,” the FT report said. “Ministers want the likes of Apple and Google to incorporate nudity-detection algorithms into their device operating systems to prevent users taking photos or sharing images of genitalia unless they are verified as adults.”

If the UK gets its way, operating systems like iOS and Android would “prevent any nudity being displayed on screen unless the user has verified they are an adult through methods such as biometric checks or official ID. Child sex offenders would be required to keep such blockers enabled.” The Home Office “has initially focused on mobile devices,” but the push could be expanded to desktops, the FT said. Government officials point out that Microsoft can already scan for “inappropriate content” in Microsoft Teams, the report said.

The UK’s “Home Office is expected to encourage companies to introduce such controls as part of its strategy to tackle violence against women and girls” when it announces the initiative in the coming days, the FT said. People familiar with the matter say that “officials have explored making such controls a mandatory requirement for devices sold in the UK but have decided against such an approach for now,” the report said.

The push for device-level blocking comes after the UK implemented the Online Safety Act, a law requiring porn platforms and social media firms to verify users’ ages before letting them view adult content. The law can’t fully prevent minors from viewing porn, as many people use VPN services to get around the UK age checks. Government officials may view device-level detection of nudity as a solution to that problem, but such systems would raise concerns about user rights and the accuracy of the nudity detection.

Age-verification battles in multiple countries

Apple and Google both provide optional tools that let parents control what content their children can access. The companies could object to mandates on privacy grounds, as they have in other venues.

When Texas enacted an age-verification law for app stores, Apple and Google said they would comply but warned of risks to user privacy. A lobby group that represents Apple, Google, and other tech firms then sued Texas in an attempt to prevent the law from taking effect, saying it “imposes a broad censorship regime on the entire universe of mobile apps.”

There’s another age-verification battle in Australia, where the government decided to ban social media for users under 16. Companies said they would comply, although Reddit sued Australia on Friday in a bid to overturn the law.

Apple this year also fought a UK demand that it create a backdoor for government security officials to access encrypted data. The Trump administration claimed it convinced the UK to drop its demand, but the UK is reportedly still seeking an Apple backdoor.

In another case, the image-sharing website Imgur blocked access for UK users starting in September while facing an investigation over its age-verification practices.

Apple faced a backlash in 2021 over potential privacy violations when it announced a plan to have iPhones scan photos for child sexual abuse material (CSAM). Apple ultimately dropped the plan.

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Jon Brodkin Senior IT Reporter
Jon is a Senior IT Reporter for Ars Technica. He covers the telecom industry, Federal Communications Commission rulemakings, broadband consumer affairs, court cases, and government regulation of the tech industry.
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