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Content filter battle against images containing text

Hey folks,

So I don't think there is an answer for this yet unless there is some funky AI based technology that might be in the endpoint soon.

A school came to me saying there were inappropriate images being displayed. Turns out there wasn't at all it ended up being was an image containing text of an innuendo and picture of a rotary phone for context.

The actual site this was on is a news site and on the page was text referencing what they were searching for. It's all explained to them and actually you can find the same innuendo on t-shirts, mugs etc. so blocking the site was pointless.

Question to the community, is there a way to actually combat these? Can any filtering on the XG (or endpoint) detect text in images? Is there a roadmap of this or is it next to impossible.

Considering the amount of people on the internet that are only capable of posting images with text inside (why?) on social media and other sites how can we combat this?

Cheers,

Ian



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  • Adding to this, Sophos AI published a demo back in may 2020 showcasing a ML demo that has capable of analyzing HTML/URL/Image contents in order to give a verdict on what classification a certain website has.

    Sophos AI WebCat ML demo | Sophos AI

    But I don't think It's possible to do this in real-time - give a verdict on each image basis. (Even doing only OCR takes too much processing power and time.)


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