Guess Who’s Texting You? Evaluating the Security of Smartphone Messaging Applications Sebastian Schrittwieser‚ Peter Fr¨ hwirt‚ Peter Kieseberg‚ Manuel Leithner‚ u Martin Mulazzani‚ Markus Huber‚ Edgar Weippl SBA Research gGmbH Vienna‚ Austria (1stletterfirstname)(lastname)@sba-research.org Abstract In recent months a new generation of mobile messaging and VoIP applications for smartphones was introduced. These services offer free calls and text messages to other subscribers‚ providing
Premium Instant messaging Text messaging Telephone
Department of Applied Physics Electricity and Magnetism Assignment # 2 Due Date: 15 November 2013 1. a) Write brief notes on the Hall effect. Show on a diagram the polarity of the Hall Voltage‚ together with a given current and magnetic field direction‚ assuming the charge carriers to be conduction electrons. [5] b) Define electric dipole and the electric dipole moment. Write down an expression‚ in vector form‚ and show graphically the electric field intensity at point P on
Premium Magnetic field Electromagnetism Electric charge
Linux: The Kernel And Shell Josh Harkey AIU Online Abstract This manual has been written to explore the many distributions of Linux. It will define some of the components of the OS as they relate to the shell and kernel. It will also go over some of the more popular distributions of Linux and the shells. Finally‚ it will give a brief overview of some useful commands that can be used in the bash shell. Linux: The Kernel and Shell It is important to know some the inner workings of an operating
Premium
1.0 Comparing Networking Features of Linux & Microsoft. Microsoft * Next Generation TCP/IP Stack: this networking feature of windows is available for “Windows Server 2008” and “Windows Vista”. It is a “complete redesign of TCP/IP functionality for both Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6) that meets the connectivity and performance needs of today ’s varied networking environments and technologies.” Joe Davies (2008) * Server Message Block 2.0 (SMB):
Premium Operating system Microsoft Windows File system
Jonathan Elliott Professor Supinski ENGL101C-13 15 November 2012 Why Linux is better than Windows Linux holds the highest‚ most used operating system when it comes to supercomputers. Although‚ Windows holds that title when it comes to the average desktop computer. “Now‚ not 20 years later‚ well over 90% of the world top 500 supercomputers are running Linux.” (Vaughan-Nichols) All operating systems from UNIX to Mac OSX have their pros and cons. Mac OSX is known more for making multi-media such
Premium Operating system Microsoft Windows Linux
your password‚ or both are invalid. Why does it not reveal this information? Answer: It is a strategy meant to discourage unauthorized people from guessing names and passwords to gain access to the system. b. Why does the system wait for a couple of seconds to respond after you supply an incorrect username or password? Answer: To help stop a brute force attack from cracking the system security features. 2. Give three examples of poor password choices. What is wrong with each? Doctor4 =
Premium Graphical user interface
Michael Nhan SE578-Practices for Administration of Physical & Operations Security Prof: Rodney Smith How do Administrative‚ Technical‚ and Physical Controls introduce a false sense of security? According to research and studies‚ the leading broadband providers have accumulated a total of over 17.4 million high-speed Internet subscribers in the US” This means that in the United States alone there are more than 17 million computers with fast connections most of which are connected to the Internet
Premium Security United States Computer virus
HIGH ALTITUDE AERONAUTICAL PLATFORMS HAAPS- seminar report | HIGH ALTITUDE AERONAUTICAL PLATFORMS HAAPS- seminar report.DOC (Size: 258 KB / Downloads: 305) ABSTRACT Today’s global communications infrastructures of landlines‚ cellular towers‚ and satellites are inadequately equipped to support the increasing worldwide demand for faster‚ better‚ and less expensive service. At a time when conventional ground and satellite systems are facing increasing obstacles and spiraling costs‚ a low
Premium Wireless Fuel cell Broadband
A CAPLIN WHITE PAPER Single-Dealer Platforms in aCAPLIN Cleared World BY PAUL www.caplin.com APRIL 2012 Far from signaling the end of singledealer platforms‚ the impending raft of new regulation in the US and Europe will create a new business environment in which the direct online channel is more important than ever for both banks and their clients. Paul Caplin‚ CEO of Caplin Systems Ltd. founded the company in 2000 Soon after the publication of the Dodd Frank act in the US‚ some early commentators
Premium Financial markets Stock market Stock
Eco550 Week 3 Chapter 5 1. The forecasting staff for the Prizer Corporation has developed a model to predict sales of its air-cushioned ride snowmobiles. The model specifies that the S vary jointly with disposable personal income Y and the population between ages 15 and 40‚Z‚ and inversely with the price of the snowmobiles P. Based on the past data‚ the best estimate of this relationship is S= K *YZ/P where k has been estimated (with the pst data) to equal 100. If Y=$11‚000‚ Z= $1‚200‚ and
Premium Monetary policy United States dollar Bretton Woods system