The paper highlights risks that accompany losing a locked iOS device regarding confidentiality of passwords stored in the keychain. It presents results of handson tests that show the possibility for attackers to reveal some of the keychain entries. For the described approach, the knowledge of the user’s secret passcode is not needed, as the protection provided by the passcode is bypassed.

Abstract This article focuses on everyday occurrences of loss and losing in urban spaces to examine the role that absence played shaping material cultures past. It returns a site has remained central histories, eighteenth-century London, shows how possessions regularly went missing due theft forgetfulness. Examining daily newspapers, alongside court cases, diary entries, handbills, demonstrates...

The functions, values, and meanings of cities, which have been in constant change transformation throughout history, are changing response to rapidly conditions, particularly recent times. areas where this can be observed most concretely generally urban spaces. Some places the city, cannot keep up with speed, may lose their structural or functional use over time remain idle when they not fed eq...

With the advent of hypertext it has become widely accepted that the departure from the so-called " linear " structure of paper increases the likelihood of readers or users becoming lost. In this paper we will discuss this aspect of hypertext in terms of its validity, the lessons to be learned from the psychology of navigation and the applicability of the navigation metaphor to the hypertext dom...

We report 60 and 90 µm observations of 7 millisecond pulsars with ISO. The pulsar PSR B1257+12 is orbited by three planets, and other millisecond pulsars may be orbited by dust disks that represent planets that failed to form or their residue. We do not detect any infrared emission from the 7 pulsars in our sample, and typical upper limits are 100 mJy. Using a simple model, we constrain the typ...