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manarak

Fingerprinting at airport: data storage ?

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Thailand introduced fingerprinting at airports - I have a question about what is done with the fingerprints.

 

Obvious use is comparison with a database of "bad people's" known fingerprints. OK.

 

But what happens with the fingerprints if there is no match in the database?

Are they being erased or are they being stored?

 

Will Thai immigration keep a record in their database with your passport details and full fingerprints?

 

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They store them in their database, together with your passport, probably forever.

The first time you have to scan all ten fingers. After this usually you have to scan only 4 fingers of the right hand.

 

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They will be stored. At the very least, to compare them to fingerprints submitted by (presumably) the same person later. Other use cases also come to mind.

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39 minutes ago, manarak said:

But what happens with the fingerprints if there is no match in the database?

Are they being erased or are they being stored?

of course they are being stored. in the future you might try to return to Thailand under a false name.

along with a photo of you for facial recognition. The question is are the systems fast enough to compare your information in real time?

perhaps not now but in the near future. 

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6 minutes ago, NCC1701A said:

of course they are being stored.

& off course they are being "shared" 🙂 

Probably conveniently forgot to tell us that bit.............

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8 minutes ago, jackdd said:

Fingerprints are usually stored about like this, i don't think they store the complete image of the fingerprint (probably the complete image doesn't even come out of the fingerprint reader, if somebody wants to confirm this you have to check the model of the fingerprint reader they use and check the manual)

whatisbiostrip.png.2620355e6fd72c16da647d3edfb87a10.png

 

From these data points you can't recreate the original fingerprint (in theory you could, but there are nearly endless possibilites, so quite unlikely to achieve)

this is how searches are conducted. looking for matches like this and then progressively more points.

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22 minutes ago, CGW said:

& off course they are being "shared" 🙂 

Probably conveniently forgot to tell us that bit.............

With whom do you think?

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I'm certain they are sent round the world. Five eyes, EU, Russia, China. My hunch is a huge pool of fingerprints which countries contribute and cross-check.

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