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john_reel
on March 18, 2016
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FingerIO: Using Active Sonar for Fine-Grained Fing...
What does it mean to “double one key”?
hga
on March 18, 2016
[–]
Have the PIN or password repeat one key in the sequence. Like "mwfabrrpg", if you type quickly an observer won't notice that the 'r' was typed twice in quick sequence.
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