We study an active underground economy that trades stolen digital credentials. In particular, we investigate keylogger-based stealing of credentials via dropzones, anonymous collection points of illicitly collected data. Based on the collected data from more than 70 dropzones, we present an empirical study of this phenomenon, giving many first-hand details about the attacks that were observed d...

This paper presents a causal logging scheme for the lazy release consistent distributed shared memory systems. Causal logging is a very attractive approach to provide the fault tolerance for the distributed systems, since it eliminates the need of stable logging. However, since inter-process dependency must causally be transferred with the normal messages, the excessive message overhead has bee...

The demand for timber products is facilitating the degradation and opening up of large areas of intact habitats rich in biodiversity. Logging creates an extensive network of access roads within the forest, yet these are commonly ignored or excluded when assessing impacts of logging on forest biodiversity. Here we determine the impact of these roads on the overall condition of selectively logged...

Sender-based message logging can considerably lower high failure-free overhead of receiver-based message logging resulting from synchronously logging each message into stable storage by using volatile memory of its sender as storage for logging. This beneficial feature can be obtained at the expense of extra communication costs required for allowing message senders to get receive sequence numbe...

It is well known that a large proportion of available logging residues intended for extraction will not reach the energy-conversion industry, because some are lost during transportation or left on the clear-felled area. However, there is little understanding of where logging residue losses occur in the supply chain. In this study, the distribution of logging residues for two methods (driedand f...

In a series of field experiments, we evaluate the influence of a small water pressure change on fracture aperture during a hydraulic test. An experimental borehole is instrumented at the Korea Atomic Energy Research Institute (KAERI) Underground Research Tunnel (KURT). The target fracture for testing was found from the analyses of borehole logging and hydraulic tests. A double packer system was...

Borehole magnetic resonance (MR) is routinely used to estimate the viscosity of light oil, even when it is mixed with water in the pore space of reservoir rock. However light oil methods are inadequate when oil viscosity is above several thousand mPa-s. There have been a number of publications relating magnetic resonance measurements to heavy oil viscosity, but the correlations proposed have no...

This article discusses the spatial and temporal aspects of hydrological processes in catchments after logging for different landscape conditions Central Siberia. For this discussion, results our own research Sayan Mountains, Yenisei Ridge, Angara River basin, Khamar-Daban ridge literature data were involved. It analyzed impact felling area to change river flow development erosion at catchment a...

on the reduction of the spleen rate, as a result of measures to remove water logging produced by the Western Jumna Canal, strongly support their view. As, however, Major Ross admits the possibility of a connection between the spleen rate and impure water being an explanation of the facts I have recorded, the point is of purely theoretical importance, for repeated blood examinations have convinc...

Message logging has long been advocated as offering better failure-free performance than coordinated checkpointing. On the contrary, we present a number of experiments showing that for compute-intensive applications executing in parallel on clusters of workstations, message logging has higher failure-free overhead than coordinated checkpointing. Message logging protocols, however, result in muc...