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VYSOKÁ ŠKOLA POLYTECHNICKÁ JIHLAVA Katedra Technických Studií
VYSOKÁ ŠKOLA POLYTECHNICKÁ JIHLAVA Katedra technických studií Návrh bezpečnostní politiky filtrování webového provozu ve školním prostředí bakalářská práce Autor práce: Radek Kudrna Vedoucí práce: Mgr. Antonín Přibyl Jihlava 2020 ZADÁNÍ BAKALÁŘSKÉ PRÁCE Autor práce: Radek Kudrna Studijní program: Elektrotechnika a informatika Obor: Aplikovaná informatika Název práce: Návrh bezpečnostní politiky filtrování webového provozu ve školním prostředí Cíl práce: V teoretické části diskutujte návrh bezpečného přístupu k Internetu pro žáky škol včetně návrhu monitoringu přístupů, na druhou stranu je potřeba zvážit politiku nefiltrovaného přístupu k Internetu. Diskutujte právní fakt nemožnosti delegace právní odpovědnosti na nezletilé žáky, která souvisí s provozem školních (bezdrátových) sítí. V praktické části bude provedeno nasazení Kerio Control s Active Directory pro filtrování provozu na MŠ a ZŠ Brtnice. Mgr. Antonín Přibyl doc. Ing. Zdeněk Horák, Ph.D. vedoucí bakalářské práce vedoucí katedry Katedra technických studií Abstrakt Tato bakalářská práce se zabývá problémem přístupu k internetu pro školy, zejména pro základní školy. Při nefiltrovaném obsahu jsou nezletilí žáci vystaveni určitým rizikům. Jedná se především o přístup na stránky se závadným obsahem, možností stát se kybernetickou obětí, nebo k samotné možnosti páchání trestné činnosti přes školní internet. Pro zamezení těchto činností je nutnost zavést určitou bezpečnostní politiku v podobě filtrování webových stránek. Právě jednotlivé možnosti blokování stránek jsou v práci popsány. Součástí je i ukázka a popis řešení v nástroji Kerio Control, který je nasazen na filtrování provozu na základní a mateřské škole Brtnice. Klíčová slova filtrování provozu; Kerio Control; monitoring; nezletilí žáci; webový filtr Abstract This bachelor thesis deals with the problem of Internet access for schools, especially for primary schools. -
Statistics for Sdo2.Oma.Be (2021-02) - Main
Statistics for sdo2.oma.be (2021-02) - main Statistics for: sdo2.oma.be Last Update: 01 Mar 2021 - 00:00 Reported period: Month Feb 2021 When: Monthly history Days of month Days of week Hours Who: Countries Full list Hosts Full list Last visit Unresolved IP Address Robots/Spiders visitors Full list Last visit Navigation: Visits duration File type Downloads Full list Viewed Full list Entry Exit Operating Systems Versions Unknown Browsers Versions Unknown Referrers: Origin Referring search engines Referring sites Search Search Keyphrases Search Keywords Others: Miscellaneous HTTP Status codes Pages not found Summary Reported period Month Feb 2021 First visit 01 Feb 2021 - 00:10 Last visit 28 Feb 2021 - 23:21 Unique visitors Number of visits Pages Hits Bandwidth 652 903 7,528 32,360 82.04 GB Viewed traffic * (1.38 visits/visitor) (8.33 Pages/Visit) (35.83 Hits/Visit) (95270.57 KB/Visit) Not viewed traffic * 28,374 37,407 96.96 GB * Not viewed traffic includes traffic generated by robots, worms, or replies with special HTTP status codes. Monthly history Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2021 2021 2021 2021 2021 2021 2021 2021 2021 2021 2021 2021 Month Unique visitors Number of visits Pages Hits Bandwidth Jan 2021 690 1,051 98,163 104,987 1443.12 GB Feb 2021 652 903 7,528 32,360 82.04 GB Mar 2021 0 0 0 0 0 Apr 2021 0 0 0 0 0 May 2021 0 0 0 0 0 Jun 2021 0 0 0 0 0 Jul 2021 0 0 0 0 0 Aug 2021 0 0 0 0 0 Sep 2021 0 0 0 0 0 Oct 2021 0 0 0 0 0 Nov 2021 0 0 0 0 0 Dec 2021 0 0 0 0 0 Total 1,342 1,954 105,691 137,347 1525.16 GB Days of -
Comodo Internet Security Essentials User Guide | © 2018 Comodo Security Solutions Inc
Comodo Internet Security Essentials Software Version 1.3 User Guide Guide Version 1.3.120318 Comodo Security Solutions 1255 Broad Street Clifton, NJ, 07013 United States Comodo Internet Security Essentials- User Guide Table of Contents Comodo Internet Security Essentials.......................................................................................................................................... 3 What is Comodo Internet Security Essentials?.......................................................................................................................... 3 How do I install Comodo Internet Security Essentials?.............................................................................................................4 What is a man-in-the-middle attack?......................................................................................................................................... 6 How does Comodo Internet Security Essentials protect me from a man-in-the-middle attack?................................................7 What is the install location of Comodo Internet Security Essentials?........................................................................................8 How do I update CISE?............................................................................................................................................................. 8 Understanding alerts and configuring exceptions....................................................................................................................14 -
How to Reform Counterintelligence Outreach to Industry
Protecting Partners or Preserving Fiefdoms? How to Reform Counterintelligence Outreach to Industry BY DARREN E. TROMBLAY | OCTOBER 2017 U.S. industry is increasingly independent of federal government direction It’s time for a new in its creation of new knowledge and capabilities. Nonetheless, the approach to counterintelligence outputs of industry support the United States’ ability to maintain outreach to the elements of its national power. Consequently, industry is in the crosshairs commercial sector— of not only foreign competitors, but also of foreign intelligence services one that focuses more that seek to surreptitiously obtain valuable knowledge and other on recognizing and responding to intellectual property. This is an unfair fight. It is further complicated by indicators of the the fact that both adversaries and allies alike have directed their threat, less on turning intelligence resources against U.S. industry. to investigators once the damage has Although the U.S. government has attempted to partner with the private sector on already been done. counterintelligence (CI) awareness and response, these efforts have been plagued by a limited concept of which industry sectors are at risk, inconsistency in programs, and redundancies across agencies. Moreover, the U.S. intelligence community is already being asked to do more with less. It is time for a new approach to the important function of counterintelligence outreach to the commercial sector. Such an approach must focus more on recognizing and responding to indicators of the threat, less on turning to investigators once the damage has already been done. Counterintelligence—in the theoretical sense—means preventing an adversary’s intelligence services from acquiring an information advantage. -
Flextivity Getting Started Guide
Getting Started Guide Before you set up your account, you may want to spend a few minutes thinking about what you want to get out of Flextivity. Of course, Flextivity helps you successfully manage basic security such as Anti-Malware protection and a powerful Network Firewall across the computers in your organization. However, Flextivity goes beyond this. We have included a few tools to help you get the most out of your deployment. Acceptable Use Policies Most employees really want to do a good job and be productive. Nonetheless, personal Internet use has been found to be one of the number one time wasters at work. Experiments have shown that people who are able to successfully resist the temptation to surf at work make more mistakes than they would if there were no temptation[1]. It’s harder for them to learn new skills, too. The practical implication of this is that employers shouldn’t have rules against surfing and then leave access to the web wide open. Instead, it’s best to allow internet access only when it is appropriate. Intego Flextivity gives you the flexibility to manage your acceptable use policy the way that works for you. Do you want to limit use on your office wifi, but let employees surf as they please when they take laptops home? With Flextivity, you can do that. Do you want to put reasonable limits on social media surfing in the office – say, 30 minutes over the course of a day? You can do that too. Intego Flextivity helps you balance trust and team morale while putting common sense checks in place. -
Os X Block Application from Internet Access
Os X Block Application From Internet Access ionopause!Photographic Cupolated Rickard fibDru some grumbled guacharos sanctimoniously. and microfilm his determent so promisingly! Overviolent and malfunctioning Pasquale never balloted his Then, using Vallum, you can set bandwidth limits for each process, independently. IE by calling this without checking the console exists first. We have strong opinions about controlling where kids use their tech. Murus makes use of anchors to separate inbound and outbound filtering rules from options rules, redirection, translation and dummynet rules. Safari says that it cannot locate the website host; it does not say I am not connected to the Internet. Managed Services views, and assigning groups to such services. Do you see anything new you could remove so you can try again? Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. An inclusive firewall does the reverse. As a quick update it seems that is you are not using an account with admin privileges, you may need supply admin credentials for the first time you download an app to install it, which may solve some of the problem. OS X Server offers options for managing this, but you can also do the same in the client version of the OS. Talk with your children so they know what is acceptable, who they are allowed to text, sites they should stay away from, for example. Then everything else is blocked. Dropbox syncing newly changed files, and so on. -
Microsoft Security Intelligence Report
Microsoft Security Intelligence Report Volume 20 | July through December, 2015 This document is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, AS TO THE INFORMATION IN THIS DOCUMENT. This document is provided “as-is.” Information and views expressed in this document, including URL and other Internet website references, may change without notice. You bear the risk of using it. Copyright © 2016 Microsoft Corporation. All rights reserved. The names of actual companies and products mentioned herein may be the trademarks of their respective owners. Authors Charlie Anthe Dana Kaufman Anthony Penta Cloud and Enterprise Security Azure Active Directory Team Safety Platform Nir Ben Zvi Nasos Kladakis Ina Ragragio Enterprise and Cloud Group Azure Active Directory Team Windows and Devices Group Patti Chrzan Daniel Kondratyuk Tim Rains Microsoft Digital Crimes Unit Azure Active Directory Team Commercial Communications Bulent Egilmez Andrea Lelli Paul Rebriy Office 365 - Information Windows Defender Labs Bing Protection Geoff McDonald Stefan Sellmer Elia Florio Windows Defender Labs Windows Defender Labs Windows Defender Labs Michael McLaughlin Mark Simos Chad Foster Identity Services Enterprise Cybersecurity Bing Group Nam Ng Roger Grimes Enterprise Cybersecurity Vikram Thakur Microsoft IT Group Windows Defender Labs Paul Henry Niall O'Sullivan Alex Weinert Wadeware LLC Microsoft Digital Crimes Unit Azure Active Directory Team Beth Jester Daryl Pecelj Terry Zink Windows Defender Microsoft IT Information -
A Simple Malware Test Environment
International Journal of Computer and Information Technology (ISSN: 2279 – 0764) Volume 02– Issue 04, July 2013 A Simple Malware Test Environment Sam Lundie and Daniel Rolf School of Computing and Information Systems University of Tasmania Launceston, Tasmania, Australia e-mail: {slundie, Daniel.Rolf} @utas.edu.au Abstract— Malware does not need to compromise the operating not-present fraud increased by 38% for the calendar year system kernel in order to provide an untrustworthy browsing 2010, with 35.6 cents in every $1,000 dollars falling victim experience for the user. This paper describes a simple, virtual to fraud [1]. However, similar figures for fraud perpetrated machine-based, malware test environment built using freeware against Online Banking are much harder to obtain as banks and open source software. The system was designed to allow are seemingly reluctant to divulge loss figures. The the high-level behaviour of a piece of malware to be studied quickly and conveniently by monitoring network, process and Symantec Corporation has claimed that cybercrime has file activity. The system proved effective when trialled against surpassed illegal drug trafficking as a criminal money- different samples of the well-known malware Zeus and was maker [2]. verified further by tests conducted with the commercially available anti-malware products PC-Tools and Trusteer. It has been estimated that Zeus is guilty of approximately Although tests were conducted with variants of the Zeus 44% of all banking malware infections [3]. In August 2009 malware, the techniques discussed in this paper are equally Gunter Ollmann the VP for research at Damaballa [4] applicable to any other malware and can be used to quickly positioned the Zeus malware as the number one botnet assess the effectiveness of potential anti-malware solutions. -
Are3na Crabbé Et Al
ARe3NA Crabbé et al. (2014) AAA for Data and Services (D1.1.2 & D1.2.2): Analysing Standards &Technologies for AAA ISA Action 1.17: A Reusable INSPIRE Reference Platform (ARE3NA) Authentication, Authorization & Accounting for Data and Services in EU Public Administrations D1.1.2 & D1.2.2– Analysing standards and technologies for AAA Ann Crabbé Danny Vandenbroucke Andreas Matheus Dirk Frigne Frank Maes Reijer Copier 0 ARe3NA Crabbé et al. (2014) AAA for Data and Services (D1.1.2 & D1.2.2): Analysing Standards &Technologies for AAA This publication is a Deliverable of Action 1.17 of the Interoperability Solutions for European Public Admin- istrations (ISA) Programme of the European Union, A Reusable INSPIRE Reference Platform (ARE3NA), managed by the Joint Research Centre, the European Commission’s in-house science service. Disclaimer The scientific output expressed does not imply a policy position of the European Commission. Neither the European Commission nor any person acting on behalf of the Commission is responsible for the use which might be made of this publication. Copyright notice © European Union, 2014. Reuse is authorised, provided the source is acknowledged. The reuse policy of the European Commission is implemented by the Decision on the reuse of Commission documents of 12 December 2011. Bibliographic Information: Ann Crabbé, Danny Vandenbroucke, Andreas Matheus, Dirk Frigne, Frank Maes and Reijer Copier Authenti- cation, Authorization and Accounting for Data and Services in EU Public Administrations: D1.1.2 & D1.2.2 – Analysing standards and technologies for AAA. European Commission; 2014. JRC92555 1 ARe3NA Crabbé et al. (2014) AAA for Data and Services (D1.1.2 & D1.2.2): Analysing Standards &Technologies for AAA Contents 1. -
Between Enforcement and Regulation
Katharina Voss Between Enforcement and Regulation A Study of the System of Case Resolution Mechanisms Used by the Between Enforcement and Regulation Between European Commission in the Enforcement of Articles 101 and 102 TFEU Katharina Voss ISBN 978-91-7797-570-0 Department of Law Doctoral Thesis in European Law at Stockholm University, Sweden 2019 Between Enforcement and Regulation A Study of the System of Case Resolution Mechanisms Used by the European Commission in the Enforcement of Articles 101 and 102 TFEU Katharina Voss Academic dissertation for the Degree of Doctor of Laws in European Law at Stockholm University to be publicly defended on Friday 12 April 2019 at 10.00 in Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 12. Abstract This thesis examines the current design of the system of case resolution mechanisms used by the European Commission (the Commission) where an infringement of Articles 101 and 102 TFEU is suspected and advances some proposals regarding this design. Infringements of Articles 101 and 102 TFEU cause considerable damage to the EU economy and ultimately, to consumers. Despite intensified enforcement of Articles 101 and 102 TFEU and ever-growing fines imposed for such infringements, the Commission continues to discover new infringements, which indicates a widespread non-compliance with EU competition rules. This raises the question of whether the enforcement currently carried out by the Commission is suitable for achieving compliance with Articles 101 and 102 TFEU. The thesis is divided into four main parts: First, the objectives pursued by the system of case resolution mechanisms used by the Commission are identified. -
The Application Usage and Risk Report an Analysis of End User Application Trends in the Enterprise
The Application Usage and Risk Report An Analysis of End User Application Trends in the Enterprise 8th Edition, December 2011 Palo Alto Networks 3300 Olcott Street Santa Clara, CA 94089 www.paloaltonetworks.com Table of Contents Executive Summary ........................................................................................................ 3 Demographics ............................................................................................................................................. 4 Social Networking Use Becomes More Active ................................................................ 5 Facebook Applications Bandwidth Consumption Triples .......................................................................... 5 Twitter Bandwidth Consumption Increases 7-Fold ................................................................................... 6 Some Perspective On Bandwidth Consumption .................................................................................... 7 Managing the Risks .................................................................................................................................... 7 Browser-based Filesharing: Work vs. Entertainment .................................................... 8 Infrastructure- or Productivity-Oriented Browser-based Filesharing ..................................................... 9 Entertainment Oriented Browser-based Filesharing .............................................................................. 10 Comparing Frequency and Volume of Use -
Breaking PDF Encryption
Practical Decryption exFiltration: Breaking PDF Encryption Jens Müller Fabian Ising Vladislav Mladenov [email protected] [email protected] [email protected] Ruhr University Bochum, Chair for Münster University of Applied Ruhr University Bochum, Chair for Network and Data Security Sciences Network and Data Security Christian Mainka Sebastian Schinzel Jörg Schwenk [email protected] [email protected] [email protected] Ruhr University Bochum, Chair for Münster University of Applied Ruhr University Bochum, Chair for Network and Data Security Sciences Network and Data Security ABSTRACT Home/Trusted Environment The Portable Document Format, better known as PDF, is one of the Decrypted Document 1. Victim opens 2. Exfiltrating Tax Declaration decrypted content most widely used document formats worldwide, and in order to en- an encrypted PDF file Scrooge McDuck with their password via the Internet sure information confidentiality, this file format supports document TOP SECRET Victim encryption. In this paper, we analyze PDF encryption and show Attacker two novel techniques for breaking the confidentiality of encrypted Victim’s PC documents. First, we abuse the PDF feature of partially encrypted documents to wrap the encrypted part of the document within Figure 1: An overview of the attack scenario: The victim attacker-controlled content and therefore, exfiltrate the plaintext opens an encrypted PDF document and unintentionally once the document is opened by a legitimate user. Second, we abuse leaks the decrypted content to an attacker-controlled server. a flaw in the PDF encryption specification to arbitrarily manipulate The encrypted PDF file was manipulated by the attacker be- encrypted content.