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A common type of weak-value experiment prepares a single particle in one state, weakly measures the occupation number another and post-selects on finding third state (a 'click'). Most experiments have been done with photons, but heralded preparation photon is difficult slow rate. Here we show that weak value mentioned above can be measured using strong (many-photon) coherent states, while still...

Click-based graphical passwords, like other user-selected passwords, suffer from predictability problems. With click-based graphical passwords, user click-points form hotspots, areas of the image that are more likely to be selected, which e-criminals can predict and use to launch dictionary attacks. Our system, Persuasive Cued Click-Points, helps users select more random click-points and reduce...