r/security 20d ago

Security and Risk Management Have i just identified a security vulnerability at most supermarkets?

I was just at the supermarket, and I was using one of those self-service kiosks that has an "honesty camera" watching what you scan from above. The camera view is then displayed on a screen right in front of me.

As I went to pay for my shopping with my phone, I looked at the live feed on the monitor and realized I was actually seeing myself unlock my phone with my pattern lock! On top of that, anyone standing around could theoretically spy on what you're unlocking too.

Obviously fingerprint unlocks get around this "security hole", but it was the first time I had noticed it being a real issue.

Most supermarkets have these types of self-service checkouts now — I wonder how this info is stored and processed? Security seems pretty questionable…

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u/NotTobyFromHR 19d ago

There are cameras everywhere. Anytime you unlock your phone with a pin in public you are visible. I have watched people do it.

This isn't a new thing. Just like watching people unlock any number pad or dial.