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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#003560">FYI
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">Von:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"> Horst Görtz Institute for IT Security <hgi-presse@rub.de>
<br>
<b>Gesendet:</b> Dienstag, 19. Januar 2021 15:41<br>
<b>An:</b> Scholten, Christina <christina.scholten@ruhr-uni-bochum.de><br>
<b>Betreff:</b> CASA Distinguished Lecture with Brad Reaves (North Carolina State University), January 25, 4 PM<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-line-height-alt:0pt"><span style="font-size:1.0pt">Topic: "Who's Calling? Characterizing and Addressing Telephone Network Abuse"
<o:p></o:p></span></p>
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<img width="1" height="1" style="width:.0104in;height:.0104in" id="_x0000_i1025" src="http://smoton.com/873ph29v-r91vb8df-d5o41kz6-1b13.gif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:19.5pt;font-family:"Arial",sans-serif;color:#035C67;background:white">CASA Distinguished Lectures NEWS</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif">
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Segoe UI Symbol",sans-serif">📅</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif"> </span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">Next Lecture
</span><span style="font-size:10.5pt;font-family:"Segoe UI Symbol",sans-serif;color:#80BC00">➡</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#80BC00"> </span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">
Monday</span><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#80BC00"> |</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">
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<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#035C67;background:white">Brad Reaves</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><br>
</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">(North Carolina State University)<br>
<br>
<b>"Who's Calling? Characterizing and Addressing Telephone Network Abuse</b>"</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><br>
<br>
</span><b><span style="font-family:"Arial",sans-serif"><a href="https://ruhr-uni-bochum.zoom.us/j/94288021386?pwd=MXNhdC8rMEl4bjZvOURQNTFmR3lnZz09#success" title="CASA DL Franziska Zoom"><span style="color:#80BC00;background:white"> </span></a><a href="https://ruhr-uni-bochum.zoom.us/j/94288021386?pwd=MXNhdC8rMEl4bjZvOURQNTFmR3lnZz09#success" title="CASA DL Franziska Zoom"><span style="font-family:"Segoe UI Symbol",sans-serif;color:#80BC00;background:white">➡</span><span style="color:#80BC00;background:white"> To
Zoom-Webinar</span></a></span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://ruhr-uni-bochum.zoom.us/j/94288021386?pwd=MXNhdC8rMEl4bjZvOURQNTFmR3lnZz09#success" title="CASA DL Franziska Zoom"><span style="font-size:12.0pt;color:#53575A;background:white"> </span></a><br>
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<p class="MsoNormal"><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">Abstract.
</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">The global telephone network is a critical communications resource, especially in times where reliable syncronous communication is required. In contrast to the Internet,
the global telephone network is more closed, less flexible, and provides fewer security mechanisms. As a consequence, characterizing, detecting, and preventing telephone network abuse is a challenging, interesting, and important problem. In this talk, we
will discuss findings from the largest study to-date that characterizes telephone network abuse and also how we can detect and prevent telephone abuse in spite of the structural factors that make the problem singularly difficult to address.<br>
<br>
<b>Bio. </b><i>Brad Reaves is an Assistant Professor of Computer Science at North Carolina State University. He is broadly interested in measuring and improving the security and privacy of computer systems, with a particular emphasis on telephone networks,
enterprise networks, and secure software development practices. His work has provided the first characterization of distinct robocall campaigns, quantified the vast scale of credential leakage in public code platforms, and identified systemic risks in emerging
mobile money systems in Africa and East and Southeast Asia. His integrates knowledge from fields as diverse as signal processing and digital communications; data science, machine learning, and statistics; natural language processing; qualitative methods; cryptography;
program analysis; reverse engineering; and Internet and telephone networks. He earned his Ph.D. in Computer Engineering from the University of Florida in 2017 and is the recipient of the 2020 First Place Internet Defense Prize.</i><br>
<br>
This is a public event. You are all invited to be part of that. A registration is not necessary.<br>
Please feel free to forward the invitation.<br>
<br>
All information about the Distinguished Lectures, our speakers and the Zoom Webinar links can be found here: </span><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://casa.rub.de/en/news/distinguished-lectures"><span style="color:#80BC00">https://casa.rub.de/en/news/distinguished-lectures</span></a>
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<p class="MsoNormal"><b><span style="font-size:15.0pt;font-family:"Arial",sans-serif;color:#035C67">Upcoming Events:</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif">
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">Monday
</span><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#80BC00">|</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">
<b>February 01</b>, 2021 </span><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#80BC00">|</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A"> 5:00 PM CET</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#035C67">Elissa Redmiles
</span></b><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><br>
</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#53575A">(Safety & Society group, Max Planck Institute for Software Systems)</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><br>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Segoe UI Symbol",sans-serif">💻</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif">
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<p class="MsoNormal" style="mso-line-height-alt:0pt"><span style="font-size:1.0pt"><img border="0" width="161" style="width:1.677in" id="_x0000_i1028" src="http://smoton.com/l3slzozn/s_873ph29v/files/DL.JPG"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">On our
<a href="https://www.youtube.com/channel/UCmqKNyqW03W017h3bJobcbg"><span style="color:#80BC00">Youtube channel</span></a> you can now find recordings from past events: The Distinguished Lectures with<o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://www.youtube.com/watch?v=mwAwpNL-iyE&t=11s" title="Bünz"><b><span style="color:#80BC00">Benedikt Bünz (Stanford University)</span></b></a><o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://www.youtube.com/watch?v=jhoEiEiim4Y" title="Kastner"><b><span style="color:#80BC00">Ryan Kastner (UC San Diego)</span></b></a><o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://www.youtube.com/watch?v=naDDSvqjDrY&t=1s" title="Asokan"><b><span style="color:#80BC00">N. Asokan, Buse Gul Atli, Sebastian Szyller (University of Waterloo and Aalto University)</span></b></a><o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://www.youtube.com/watch?v=2PobV1jH4a8&t=21s" title="Shostack"><b><span style="color:#80BC00">Adam Shostack (Shostack & Associates)</span></b></a><o:p></o:p></span></li></ul>
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<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#999999">Imprint:<br>
Horst Görtz Institute for IT Security - Ruhr Universität Bochum<br>
Universitätsstraße 150, 44780 BO</span></i><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><br>
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