"Works" in the context of computer security typically refers to the various methodologies, tools, practices, and strategies used to protect computer systems, networks, and data from unauthorized access, damage, theft, or disruption. Here are some key components of computer security: 1. **Authentication**: Verifying the identity of users trying to access a system. This can involve passwords, biometrics, two-factor authentication, and digital certificates.

Eratosthenes was a Greek mathematician, astronomer, and geographer who lived from approximately 276 BC to 194 BC. He is best known for several contributions to mathematics and science, most notably for developing a method to calculate the Earth's circumference with remarkable accuracy. One of his significant achievements is the Sieve of Eratosthenes, an ancient algorithm used to find all prime numbers up to a specified integer.

BlueBorne is a security vulnerability that was discovered in 2017 and affects many devices that use Bluetooth technology. It allows an attacker to take control of devices without needing to pair with them, potentially enabling unauthorized access to sensitive information and execution of malicious activities.

The Centurion Guard is a highly specialized security force tasked with protecting the tomb of the Unknown Soldier, located at the Memorial to the Unknown Soldier in Athens, Greece. This elite unit of the Hellenic Army is distinguished by its ceremonial duties and is known for its impressive uniforms and the precision of its movements during the changing of the guard ceremony.

Cloud computing security refers to a set of policies, technologies, and controls designed to protect cloud-based systems, data, and infrastructure from various cybersecurity threats. As organizations increasingly adopt cloud services, ensuring the security of sensitive information and applications hosted in the cloud becomes critical. Key aspects of cloud computing security include: 1. **Data Protection**: Ensuring that data stored in the cloud is encrypted both in transit and at rest.

The Commission on Enhancing National Cybersecurity is a U.S. government initiative established to assess and improve the country's cybersecurity posture. Formed in 2016 through an executive order by then-President Obama, the commission was tasked with addressing cybersecurity challenges and providing recommendations to enhance the security of federal systems, critical infrastructures, and the economy. The commission's activities have focused on several key areas, including: 1. **Collaboration**: Encouraging cooperation between public and private sectors to improve cybersecurity resilience.

The "confused deputy" problem is a security vulnerability that occurs in computer systems when a program or process, acting on behalf of another entity, is fooled into performing actions that it should not be allowed to do. This situation often arises when privileges are mismanaged or mishandled, particularly in access control scenarios. In a typical example, consider a scenario where a program (the "deputy") has certain permissions on behalf of a user (the "principal").

CyberPatriot is a national youth cyber defense competition organized by the Air Force Association (AFA). Launched in 2009, its primary goal is to inspire students toward careers in cybersecurity and other science, technology, engineering, and mathematics (STEM) fields. The competition is aimed at middle school and high school students and focuses on educating participants about cybersecurity concepts and best practices.

The Cyber Storm Exercise is a series of government-led cybersecurity exercises designed to test and enhance the nation's preparedness for significant cyber incidents. Organized by the U.S. Department of Homeland Security (DHS), Cyber Storm aims to bring together a diverse group of stakeholders, including federal, state, and local government agencies, as well as private sector partners and international participants. The exercise simulates large-scale cyber incidents that could impact critical infrastructure and services, such as energy, telecommunications, and transportation systems.

Cyber self-defense refers to the strategies, techniques, and practices that individuals and organizations employ to protect themselves from various cyber threats, including cyberattacks, data breaches, identity theft, and online harassment. It encompasses both proactive measures to prevent attacks and reactive measures to mitigate damage if an incident occurs. Key components of cyber self-defense include: 1. **Awareness and Education**: Understanding the types of cyber threats that exist and how they operate.

Cybersex trafficking is a form of human trafficking that involves the exploitation of individuals for sexual purposes through online platforms. It typically occurs when traffickers use technology, such as the internet and various digital communication tools, to exploit victims by forcing them into producing sexual content or engaging in sexual acts in front of a webcam.

Electric grid security in the United States refers to the measures and strategies employed to protect the nation's electric power system from a range of threats, including physical attacks, cyber threats, natural disasters, and other risks that could disrupt the generation, transmission, and distribution of electricity. The electric grid is a complex network that consists of power plants, transmission lines, substations, and distribution systems, and its security is critical for ensuring the reliability and safety of electricity supply.

Fail-stop is a type of fault tolerance mechanism in computer systems and software design that ensures that when a failure occurs, the system stops functioning immediately in a safe and controlled manner, rather than continuing to operate in a potentially erroneous state. This approach is often used in safety-critical systems where incorrect behavior due to faults could lead to severe consequences.

An Information Exchange Gateway (IEG) is a platform or system that facilitates the seamless exchange of data and information between different systems, applications, or organizations. It is often used in contexts where disparate systems need to communicate with each other, ensuring that data can flow freely and securely across different environments. ### Key Features of Information Exchange Gateways: 1. **Interoperability**: IEGs help different software applications and systems that use various protocols or data formats to communicate with each other.

An insider threat refers to a security risk that originates from within an organization. This type of threat can come from current or former employees, contractors, or any individuals with insider access to an organization's systems and data. Insider threats can manifest in various ways, including: 1. **Malicious Actions**: An employee may intentionally steal data, sabotage systems, or engage in other harmful activities motivated by personal gain, revenge, or other motivations.

Intrusion tolerance refers to the ability of a system to continue operating effectively even in the presence of security breaches or malicious activities. It aims to mitigate the impact of intrusions and maintain the availability, integrity, and confidentiality of the system’s data and services. Key aspects of intrusion tolerance include: 1. **Redundancy**: Implementing redundant components or pathways to ensure that if one part of the system is compromised, others can take over, maintaining service continuity.

The Pwnie Awards is an annual event that recognizes and honors outstanding achievements in the field of computer security, specifically in the realm of hacking and vulnerability research. Named after the "pwn" term from gaming culture, which refers to dominating or defeating an opponent, the Pwnie Awards celebrate both positive contributions to security and notable failures in the field. The awards are typically presented during the Black Hat and DEF CON conferences, which are prominent events in the cybersecurity community.

MinID (Minimal Identifier) is a digital identity solution developed by the Norwegian government to provide secure access to various online services. It allows users to authenticate themselves using a secure, simplified method, ensuring that their personal information remains protected. MinID is commonly used for accessing government services, healthcare information, and other online platforms that require identification. Users typically create a MinID account by providing personal details, which are then verified.

The Opal Storage Specification is a technical standard developed for the protection of data on storage devices, primarily focusing on solid-state drives (SSDs) and hard disk drives (HDDs). It is part of a broader initiative aimed at enhancing data security, especially for sensitive information on devices that could be lost or stolen. Opal defines a set of features and capabilities for implementing full-disk encryption and various security protocols.

A public computer typically refers to a computer that is made available for use by the general public. These computers can be found in various locations, such as: 1. **Libraries**: Many public libraries provide computers for patrons to use for research, accessing the internet, or completing assignments. 2. **Community Centers**: These facilities may offer computer access for residents to use for various purposes, such as job searching or online training.