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A comment on Samsung Family Hub fridges will start showing adds to "Elevate" Home Ecosystem. Parent comment

Re:Samsung Family Hub fridges will start showing adds to "El... by the8472 on Sunday November 09, 2025 @12:44PM (#45867404)
Then they can exfiltrate data over DNS.
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Re:Samsung Family Hub fridges will start showing adds to "El... by margalabargala on Sunday November 09, 2025 @02:01PM (#45868126)
I mean, only if the DNS server is one run by the company in question.

I own nonzero such devices that hit 8.8.8.8 as an internet access sanity check so I have to keep just that IP allowed for them and block all other traffic.

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Re:Samsung Family Hub fridges will start showing adds to "El... by kaoD on Sunday November 09, 2025 @02:16PM (#45868269)
DNS is a hierarchical protocol. You can exfiltrate data as long as the DNS server is resolving recursively.
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Re:Samsung Family Hub fridges will start showing adds to "El... by margalabargala on Sunday November 09, 2025 @04:39PM (#45869435)
Good to know. I didn't know that.

For my devices in question I can see the size and frequency of the requests in OpenWRT and doubt it's actually doing so.

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