cyber security thesis reddit

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Dissertations / Theses on the topic 'Computer security ; cybersecurity'

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Reid, Rayne. "Guidelines for cybersecurity education campaigns." Thesis, Nelson Mandela University, 2017. http://hdl.handle.net/10948/14091.

Choi, Min Suk. "Assessing the Role of User Computer Self-Efficacy, Cybersecurity Countermeasures Awareness, and Cybersecurity Skills toward Computer Misuse Intention at Government Agencies." NSUWorks, 2013. http://nsuworks.nova.edu/gscis_etd/119.

Locke, Ronald Taylor. "Anomaly detection with applications in environmental and cyber security." Thesis, Boston University, 2012. https://hdl.handle.net/2144/33260.

Shirazi, Patrick. "Identifying Challenges in Cybersecurity Data Visualization Dashboards." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80412.

Gcaza, Noluxolo. "A national strategy towards cultivating a cybersecurity culture in South Africa." Thesis, Nelson Mandela University, 2017. http://hdl.handle.net/10948/13735.

Loughry, Joe. "Security test and evaluation of cross domain systems." Thesis, University of Oxford, 2014. https://ora.ox.ac.uk/objects/uuid:71694222-3ef1-4fe6-9637-c8586798f352.

Markwood, Ian. "Offensive and Defensive Security for Everyday Computer Systems." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7336.

Johnson, William. "Development of Peer Instruction Material for a Cybersecurity Curriculum." ScholarWorks@UNO, 2017. http://scholarworks.uno.edu/td/2367.

Deshpande, Pranita. "Assessment Of Two Pedagogical Tools For Cybersecurity Education." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2557.

Adeka, Muhammad I. "Cryptography and Computer Communications Security. Extending the Human Security Perimeter through a Web of Trust." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/11380.

Goode, Jodi. "Comparing Training Methodologies on Employee’s Cybersecurity Countermeasures Awareness and Skills in Traditional vs. Socio-Technical Programs." Diss., NSUWorks, 2018. https://nsuworks.nova.edu/gscis_etd/1045.

Cardarelli, Anthony. "Automated Deployment of a Security Operations Center." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592133599167901.

Selinger, David Emanuel. "Designing a Security Education Curriculum Using Gamification Principles." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1574424122762057.

Sengelmann, Michael. "An Overview of Reverse Engineering and A Security Analysis of TikTok." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613748245334672.

Friman, Nelly. "Security Analysis of Smart Buildings." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279423.

Amir-Mohammadian, Sepehr. "A Formal Approach to Combining Prospective and Retrospective Security." ScholarWorks @ UVM, 2017. http://scholarworks.uvm.edu/graddis/802.

Horcher, Ann-Marie. "Conservation of Limited Resources: Design Principles for Security and Usability on Mobile Devices." Diss., NSUWorks, 2018. https://nsuworks.nova.edu/gscis_etd/1028.

Campbell, Joshua Michael. "How Information and Communication Security Technologies Affect State Power." Malone University Undergraduate Honors Program / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ma1462540876.

Muedas, Higginson Ana Cristina, and Velásquez Renato Germán Rojas. "Modelo de madurez de seguridad de aplicaciones web ante ciberataques para clínicas de nivel 2." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/628108.

Rodriguez, Ricardo J. "An Electroencephalogram (EEG) Based Biometrics Investigation for Authentication| A Human-Computer Interaction (HCI) Approach." Thesis, Nova Southeastern University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3723216.

Encephalogram (EEG) devices are one of the active research areas in human-computer interaction (HCI). They provide a unique brain-machine interface (BMI) for interacting with a growing number of applications. EEG devices interface with computational systems, including traditional desktop computers and more recently mobile devices. These computational systems can be targeted by malicious users. There is clearly an opportunity to leverage EEG capabilities for increasing the efficiency of access control mechanisms, which are the first line of defense in any computational system.

Access control mechanisms rely on a number of authenticators, including “what you know”, “what you have”, and “what you are”. The “what you are” authenticator, formally known as a biometrics authenticator, is increasingly gaining acceptance. It uses an individual’s unique features such as fingerprints and facial images to properly authenticate users. An emerging approach in physiological biometrics is cognitive biometrics, which measures brain’s response to stimuli. These stimuli can be measured by a number of devices, including EEG systems.

This work shows an approach to authenticate users interacting with their computational devices through the use of EEG devices. The results demonstrate the feasibility of using a unique hard-to-forge trait as an absolute biometrics authenticator by exploiting the signals generated by different areas of the brain when exposed to visual stimuli. The outcome of this research highlights the importance of the prefrontal cortex and temporal lobes to capture unique responses to images that trigger emotional responses.

Additionally, the utilization of logarithmic band power processing combined with LDA as the machine learning algorithm provides higher accuracy when compared against common spatial patterns or windowed means processing in combination with GMM and SVM machine learning algorithms. These results continue to validate the value of logarithmic band power processing and LDA when applied to oscillatory processes.

Kamongi, Patrick. "Ontology Based Security Threat Assessment and Mitigation for Cloud Systems." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404576/.

Curran, Theresa. "Standardizing Instructional Definition and Content Supporting Information Security Compliance Requirements." Diss., NSUWorks, 2018. https://nsuworks.nova.edu/gscis_etd/1038.

Gaboriau-Couanau, Clément. "Security of Embedded Software : An Analysis of Embedded Software Vulnerabilities and Related Security Solutions." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215703.

Habeeb, Richard. "Improving the Security of Building Automation Systems Through an seL4-based Communication Framework." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7161.

Doyle, Marc. "Comprehending the Safety Paradox and Privacy Concerns with Medical Device Remote Patient Monitoring." Diss., NSUWorks, 2019. https://nsuworks.nova.edu/gscis_etd/1090.

Musa, Shahrulniza. "Visualising network security attacks with multiple 3D visualisation and false alert classification." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/14241.

Hedlund, Filip, and Emma Loots. "Information Security Risk Assessment : An Analysis of a Medical Aid Service." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284151.

Takacs, Gergely. "Integration of CTI into security management." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74246.

Persson, Sebastian. "Who Watches The Privileged Users." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414648.

Izagirre, Mikel. "Deception strategies for web application security: application-layer approaches and a testing platform." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64419.

Shirley, Brandon L. "Developing and Securing Software for Small Space Systems." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7544.

Lindqvist, Anna. "Threats to smart buildings : Securing devices in a SCADA network." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176723.

(5929946), James E. Lerums. "Measuring the State of Indiana's Cybersecurity." Thesis, 2019.

This dissertation introduces a scorecard to enable the State of Indiana to measure the cybersecurity of its public and private critical infrastructure and key resource sector organizations. The scorecard was designed to be non-threatening and understandable so that even small organizations without cybersecurity expertise can voluntarily self-asses their cybersecurity strength and weaknesses. The scorecard was also intended to enable organizations to learn, so that they may identify and self-correct their cybersecurity vulnerabilities. The scorecard provided quantifiable feedback to enable organizations to benchmark their initial status and measure their future progress.

Using the scorecard, the Indiana Executive Council for Cybersecurity launched a Pilot to measure cybersecurity of large, medium, and small organizations across eleven critical infrastructure and key resources sectors. This dissertation presents the analysis and results from scorecard data provided by the Pilot group of 56 organizations. The cybersecurity scorecard developed as part of this dissertation has been included in the Indiana Cybersecurity Strategy Plan published September 21, 2018.

Patala, Najiyabanu Noormohmed. "Cybersecurity framework for cloud computing adoption in rural based tertiary institutions." Diss., 2018. http://hdl.handle.net/11602/1362.

Van, Vuuren Johanna Christina Jansen. "Methodology and Model to Establish Cybersecurity for National Security in Africa using South Africa as a Case Study." Thesis, 2016. http://hdl.handle.net/11602/744.

(8072417), Braiden M. Frantz. "CISTAR Cybersecurity Scorecard." Thesis, 2019.

Highly intelligent and technically savvy people are employed to hack data systems throughout the world for prominence or monetary gain. Organizations must combat these criminals with people of equal or greater ability. There have been reports of heightened threats from cyber criminals focusing upon the energy sector, with recent attacks upon natural gas pipelines and payment centers. The Center for Innovative and Strategic Transformation of Alkane Resources (CISTAR) working collaboratively with the Purdue Process Safety and Assurance Center (P2SAC) reached out to the Computer and Information Technology Department to assist with analysis of the current cybersecurity posture of the companies involved with the CISTAR initiative. This cybersecurity research project identifies the overall defensive cyber posture of CISTAR companies and provides recommendations on how to bolster internal cyberspace defenses through the identification of gaps and shortfalls, which aided the compilation of suggestions for improvement. Key findings include the correlation of reduced cybersecurity readiness to companies founded less than 10 years ago, cybersecurity professionals employed by all CISTAR companies and all CISTAR companies implementing basic NIST cybersecurity procedures.

(6613439), Siddharth Chowdhury. "PERCEPTIONS OF PURPLE TEAMS AMONG CYBERSECURITY PROFESSIONALS." Thesis, 2019.

Gwala, Sizwe. "Barriers to implementation of the (SA) National Cybersecurity Policy Framework." Thesis, 2016. https://hdl.handle.net/10539/23802.

"CacheLight: A Lightweight Approach for Preventing Malicious Use of Cache Locking Mechanisms." Master's thesis, 2018. http://hdl.handle.net/2286/R.I.50522.

(11173323), Hanlin Chen. "Adaptive Safety and Cyber Security for Connected and Automated Vehicle System." Thesis, 2021.

This dissertation discussed the potential benefits that CAV systems can bring to the general well-being, and how the threat lies within the CAV system can affect its performance and functionality.

Particularly, this dissertation discovered how CAV technology can benefit homeland security and crime investigations involving child abduction crimes. By proposing the initial design network, this dissertation proposed a solution that enhances the current AMBER Alert system using CAV technology. This dissertation also discussed how CAV technology can help perception in corner-case driving scenarios and reduce the risk of traffic accidents, by proposing a dataset that covers various corner cases including different weather and lighting conditions targeting the work zone. Evaluation is made on the collected data and several impact factors have been figured out.

This dissertation also discussed an attack scenario that a ROS-based CAV platform was attacked by DoS attacks. We analized the system response after we attacked the system. Discussion and analysis was made on the functionality and stability of the system.

Overall, we determined that CAV technology can greatly benefit in general well-being, and threats within the CAV system can cast potential negative benefits once the CAV system is being attacked.

(8810120), Naif S. Almakhdhub. "INTERNET OF THINGS SYSTEMS SECURITY: BENCHMARKING AND PROTECTION." Thesis, 2020.

Internet of Things (IoT) systems running on Microcontrollers (MCUS) have become a prominent target of remote attacks. Although deployed in security and safety critical domains, such systems lack basic mitigations against control-flow hijacking attacks. Attacks against IoT systems already enabled malicious takeover of smartphones, vehicles, unmanned aerial vehicles, and industrial control systems.

The thesis introduces a systemic analysis of previous defense mitigations to secure IoT systems. Building off this systematization, we identify two main issues in IoT systems security. First, efforts to protect IoT systems are hindered by the lack of realistic benchmarks and evaluation frameworks. Second, existing solutions to protect from control-flow hijacking on the return edge are either impractical or have limited security guarantees. This thesis addresses these issues using two approaches.

First, we present BenchIoT, a benchmark suite of five realistic IoT applications and an evaluation framework that enables automated and extensible evaluation of 14 metrics covering security, performance, memory usage, and energy. BenchIoT enables evaluating and comparing security mechanisms. Using BenchIoT, we show that even if two security mechanisms have similarly modest runtime overhead, one can have undesired consequences on security such as a large portion of privileged user execution.

Second, we introduce Return Address Integrity (RAI), a novel security mechanism to prevent all control-flow hijacking attacks targeting return edges, without requiring special hardware. We design and implement μRAI to enforce the RAI property. Our results show μRAI has a low runtime overhead of 0.1% on average, and therefore is a

practical solution for IoT systems.

This thesis enables measuring the security IoT systems through standardized benchmarks and metrics. Using static analysis and runtime monitors, it prevents control-flow hijacking attacks on return edges with low runtime overhead. Combined, this thesis advances the state-of-the-art of protecting IoT systems and benchmarking its security.

"SDN-based Proactive Defense Mechanism in a Cloud System." Doctoral diss., 2015. http://hdl.handle.net/2286/R.I.34850.

(6623090), Gregory Walkup. "Investigating Attacks on Industrial Control Systems Using Deterministic Replay Simulation." Thesis, 2019.

(8119418), Hafiz Muhammad Junaid Khan. "A MACHINE LEARNING BASED WEB SERVICE FOR MALICIOUS URL DETECTION IN A BROWSER." Thesis, 2019.

Svensson, Elina, and Annika Rydén. "JamaicaEye : What does cyber security look like in one of the most recently developed CCTV networks?" Thesis, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-22266.

"Blurring Safety Between Online and Offline Worlds: Archival, Correlational, and Experimental Evidence of Generalized Threat in the Digital Age." Doctoral diss., 2017. http://hdl.handle.net/2286/R.I.44025.

(11023221), Fahad Salamh. "A 3-DIMENSIONAL UAS FORENSIC INTELLIGENCE-LED TAXONOMY (U-FIT)." Thesis, 2021.

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Cybersecurity Event Update

Note for Media: The statement below can be attributed "to an Ascension spokesperson".

May 15 - 4:23pm CT

Ascension continues to make progress towards restoration and recovery following the recent ransomware attack. We continue to work with industry leading forensic experts from Mandiant to conduct our investigation into this attack and understand the root cause and how this incident occurred. In parallel, we have brought in additional cybersecurity experts from Palo Alto Networks Unit 42 and from CYPFER to help supplement our rebuild and restoration efforts. We are focused on getting systems back up and running as safely and as quickly as possible. We are also working on reconnecting with our vendors with the help of our recovery experts. Please be aware that it may still take some time to return to normal operations.

Our priority remains providing quality patient care and relaying up-to-date information when available as we work through this recovery process. Please continue to refer to this website page along with the regional update pages for more information. We encourage anyone seeking information surrounding the incident or with questions about the operational status of Ascension facilities to visit this page for the latest updates.

As we continue to progress in these recovery and restoration efforts, we want to express a sincere thank you to our patients and community for your patience and support through this difficult time.

Regional Updates

District of Columbia

General - Frequently Asked Questions

On May 8, Ascension detected unusual activity in our network systems, which we have determined is due to a ransomware attack. We continue to diligently investigate and address this ransomware attack, working closely with industry-leading cybersecurity experts to assist in our investigation and recovery efforts.

Systems that are currently unavailable include some electronic health records systems, some patient portals (which enables patients to view their medical records and communicate with their providers), some phone systems and various systems utilized to order certain tests, procedures and medications. We have implemented established protocols and procedures to address these particular system disruptions in order to continue to provide care to patients.

Downtime procedures are safe clinical practices born out of necessity. They are predefined steps that all healthcare organizations follow during a system or network failure developed in case of a potential threat. We are taking all necessary precautions at this time and our downtime procedures require our highly qualified, dedicated medical, nursing and clinical teams to utilize manual processes to ensure patients are properly cared for.

Manual processes including moving to paper records and processing everything by hand are being utilized for varying clinical processes including dispensing medication, inputting health medical records, ordering and completion of diagnostic tests and procedures, contacting patients and sharing information securely.

Our restoration work will take time, and we do not have a timeline for completion. We will continue to provide updates as appropriate.

Investigations of this nature take time to complete. While we are not able to provide an exact timetable, we will continue to provide updates as appropriate. These updates can be found on our website at https://about.ascension.org/cybersecurity-event.

If we determine sensitive data was potentially exfiltrated or accessed as part of this incident, we will notify applicable individuals and parties in accordance with our obligations.

Patient - Frequently Asked Questions

Caring for our patients remains our highest priority. We understand there may be concerns, but our workforce is well trained in providing patient care with established downtime procedures.

Our teams are working directly with any patient whose appointment or procedure will need to be rescheduled. Unless instructed otherwise by their care team, patients should continue to attend appointments as scheduled.

Yes. Our hospitals and facilities remain open and are providing care. Caring for our patients remains our highest priority. We understand there may be concerns, but our workforce is well trained in providing patient care with established downtime procedures.

Our hospitals and facilities remain open and are providing care. However, due to downtime procedures, several hospitals are currently on diversion for emergency medical services in order to ensure emergency cases are triaged immediately. Safely caring for our patients remains our highest priority as we navigate this cybersecurity incident.

Our hospitals and facilities, including emergency departments, remain open and are providing care. Caring for our patients remains our highest priority. We understand there may be concerns, but our workforce is well trained in providing patient care with established downtime procedures.

If you are experiencing a medical emergency, please contact 911 and your local emergency services will bring you to the nearest hospital emergency room.

Previous Media Statements

May 13 - 4:30pm CT

Ascension previously reported that it experienced a ransomware attack that has caused disruptions to patient care in its network. Our priority remains on providing safe patient care. Ascension, with the support of leading cybersecurity experts, worked around the clock over the weekend to respond to the ransomware incident affecting our systems. We are focused on restoring systems safely. We are making progress, however, it will take time to return to normal operations. As systems and services come back online, we will share those updates so that our patients and communities can plan accordingly. We have established a dedicated website to share any updates we have across our system. We will be expanding the site this week to provide updates related to healthcare services as they relate to specific regions.

May 11 - 2:00pm CT

We continue to diligently investigate and address the recent ransomware incident, working closely with industry leading cybersecurity experts to assist in our investigation and restoration and recovery efforts. Additionally, we have notified law enforcement, as well as government partners including the FBI, the Cybersecurity and Infrastructure Security Agency (CISA), the Department of Health and Human Services (HHS), and the American Hospital Association (AHA). We remain in close contact with the FBI and CISA, and we are sharing relevant threat intelligence with the Health Information Sharing and Analysis Center (H-ISAC) so that our industry partners and peers can take steps to protect themselves from similar incidents.

While our restoration work continues in earnest, our focus is on restoring systems as safely as possible. While we expect this process will take time to complete, we are making progress and systems are being restored in a coordinated manner at each of our care sites. We will continue to share updates on our recovery process.

On May 8, Ascension detected unusual activity in our network systems. We have determined this is a cybersecurity incident. We are working around the clock with internal and external advisors to investigate, contain, and restore our systems following a thorough validation and screening process. Our investigation and restoration work will take time to complete, and we do not have a timeline for completion.

Safely caring for patients remains our highest priority as we navigate this cybersecurity incident. We are actively supporting our ministries as they continue to provide safe, patient care with established downtime protocols and procedures, in which our workforce is well trained. It is expected that we will be utilizing downtime procedures for some time. Patients should bring to their appointment notes on their symptoms and a list of current medications and prescription numbers or the prescription bottles so their care team can call in medication needs to pharmacies.

Systems that are currently unavailable include our electronic health records system, MyChart (which enables patients to view their medical records and communicate with their providers), some phone systems, and various systems utilized to order certain tests, procedures and medications. We have implemented established protocols and procedures to address these particular system disruptions in order to continue to provide safe care to patients. Out of an abundance of caution, however, some non-emergent elective procedures, tests and appointments have been temporarily paused while we work to bring systems back online. Our teams are working directly with any patient whose appointment or procedure will need to be rescheduled. We understand the frustration this may cause and sincerely regret any inconvenience to our patients.

Due to downtime procedures, several hospitals are currently on diversion for emergency medical services in order to ensure emergency cases are triaged immediately. If you are experiencing a medical emergency, please contact 911 and your local emergency services will bring you to the nearest hospital emergency room.

We are beyond grateful for the hard work and dedication of our care teams across the system, and their continued commitment to our patients. We also thank our patients and our community for their continued support and patience during this time as we work through a diligent, time-intensive process to restore systems as quickly, and as safely, as possible. To ensure all patients, staff, and stakeholders are kept informed during this event, we will continue to post updated information on our website as it becomes available.

Note for Media: The statement below can be attributed "to an Ascension spokesperson". For updates, please visit about.ascension.org/cybersecurity-event

On Wednesday, May 8, we detected unusual activity on select technology network systems, which we now believe is due to a cybersecurity event. At this time we continue to investigate the situation. We responded immediately, initiated our investigation and activated our remediation efforts. Access to some systems have been interrupted as this process continues.

Our care teams are trained for these kinds of disruptions and have initiated procedures to ensure patient care delivery continues to be safe and as minimally impacted as possible. There has been a disruption to clinical operations, and we continue to assess the impact and duration of the disruption.

We have engaged Mandiant, a third party expert, to assist in the investigation and remediation process, and we have notified the appropriate authorities. Together, we are working to fully investigate what information, if any, may have been affected by the situation. Should we determine that any sensitive information was affected, we will notify and support those individuals in accordance with all relevant regulatory and legal guidelines.

We are reaching out to our business partners to ensure they are aware of the situation so they can take appropriate steps to safeguard their systems. We encourage all business partners to coordinate with the Ascension Technology partners to address any specific questions.

This is an ongoing situation and we will provide updates on our website as we learn more.