Apple’s CSAM troubles may be back as new law planned – Jahanagahi

Apple’s CSAM troubles may be back as new law planned

Apple’s CSAM troubles may be back, after controversy over the issue of scanning iPhones for child sexual abuse materials led to the company suspending its plans.

A report today says that the European Union is planning a law that would require tech giants like Apple to detect, report, and remove CSAM, and that we’ll see a draft of the new law as early as this week …

Apple’s CSAM troubles

Most cloud services already scan for child sexual abuse materials. Any examples detected are reported to law enforcement.

Apple wanted to do the same, but at the same time wanted to do the scanning in a manner which protected user privacy. It therefore announced plans for on-device scanning in a way that meant only confirmed matches would ever be viewed by a human moderator.

  • Apple downloads the CSAM database hashes to your iPhone
    (digital signatures of CSAM images, not actual images, obviously).
  • An on-device process looks for matches with hashes of your photos.
  • If fewer than 30 are found, no action is taken.
  • If 30+ matches are found, low resolutions of your photos are manually examined by Apple.
  • If the photos are found to be innocent, no further action is taken.
  • If manual review confirms them as CSAM, law enforcement is informed.

However, experts and campaigners immediately pointed out potential flaws in the approach – something Apple should have expected, but apparently didn’t.

Concerns have been raised by cybersecurity experts, human rights organizations, governments, and Apple’s own employees. Four main concerns have been raised, explained here:

  • Accidental false positives could ruin someone’s reputation.
    (Apple addressed this one by setting a threshold of 30+ matches.)
  • Deliberate false positives (aka collision attacks) could be created to achieve the same goal.
  • Authoritarian governments could add political posters and similar to the database.
  • The same hash-based on-device searches could be later applied to iMessage.

The company then said that it was going to take some time to rethink its plans. That was in September of last year, and eight months have passed without a single word on the subject from Apple, leading some to suspect that the company intended to simply pretend it had never happened for as long as it could. But that may not be possible for much longer…

Planned European law on CSAM detection

Politician reports that the European Union is planning on announcing a new law requiring tech giants to scan for CSAM. That would leave Apple having to figure out how to comply without reigniting the controversy.

The Commission is expected to release a draft law this week that could require digital companies like Meta Platforms, Google and Apple to detect, remove and report illegal images of abuse to law enforcement under threat of ends.

According to a leak of the proposal obtained by POLITICO on Tuesday, the Commission said voluntary measures taken by some platforms have so far “proven insufficient” to address the misuse of online services for the purposes of child sexual abuse.

The rulebook comes as child protection hotlines report a record amount of disturbing content circulating online during the coronavirus pandemic. Europe is a hot spot for hosting such content, with 62 percent of the world’s illegal images located on European data servers in 2021.

We’ll need to wait until the draft law is published to see exactly what it requires, but one way or another, Apple will have to solve the problem.

The situation is likely to get messy, as one of the key proponents of the new law appears to be opposed to end-to-end encryption. Home Affairs Commissioner Ylva Johansson said:

Abusers hide behind the end-to-end encryption; it’s easy to use but nearly impossible to crack, making it difficult for law enforcement to investigate and prosecute crimes.

We’ve been pointing out for many years that it is impossible to simultaneously protect user privacy with end-to-end encryption while also creating backdoors for law enforcement.

Photo: Christina @

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