Computer security Wikipedia

 

The Russian invasion of Ukraine is marked by both military and destructive malware attacks. As the invasion expands, the threat of attacks to critical infrastructure — and the potential for fatal outages — grows. Social engineering is a tactic that adversaries use to trick you into revealing sensitive information. Social engineering can be combined with any of the threats listed above to make you more likely to click on links, download malware, or trust a malicious source. The Cost of a Data Breach Report explores financial impacts and security measures that can help your organization avoid a data breach, or in the event of a breach, mitigate costs. IBM Security offers one of the most advanced and integrated portfolios of enterprise security products and services.

According to UN Secretary-General António Guterres, new technologies are too often used to violate rights. Identifying attackers is difficult, as they may operate through proxies, temporary anonymous dial-up accounts, wireless connections, and other anonymizing procedures which make back-tracing difficult - and are often located in another jurisdiction. If they successfully breach security, they have also often gained enough administrative access to enable them to delete logs to cover their tracks. Within computer systems, two of the main security models capable of enforcing privilege separation are access control lists and role-based access control . In software engineering, secure coding aims to guard against the accidental introduction of security vulnerabilities. It is also possible to create software designed from the ground up to be secure.

Organizations are turning to zero trust security solutions to help protect their data and resources by making them accessible only on a limited basis and under the right circumstances. A DDoS attack attempts to crash a server, website or network by overloading it with traffic, usually from multiple coordinated systems. DDoS attacks overwhelm enterprise networks via the simple network management protocol , used for modems, printers, switches, routers, and servers.

Today, this approach is insufficient, as the threats advance and change more quickly than organizations can keep up with. As a result, advisory organizations promote more proactive and adaptive approaches to cyber security. A new update to the National Institute of Standards and Technology’s foundational cybersecurity supply chain risk management (C-SCRM) guidance aims to help organizations protect themselves as they acquire and use technology products and services. A comprehensive data security platform protects sensitive information across multiple environments, including hybrid multicloud environments.

Recent ransomware attacks have targeted state and local governments, which are easier to breach than organizations and under pressure to pay ransoms in order to restore applications and web sites on which citizens rely. Security system complexity, created by disparate technologies and a lack of in-house expertise, can amplify these costs. Cybersecurity attacks continue to increase in frequency and sophistication for the Aerospace and Defense industry. Adversaries are targeting anyone who possesses the sensitive information they seek including the government, prime contractors, and suppliers. It is imperative that our suppliers understand what’s at stake and recognize our shared role in protecting sensitive information and intellectual property. A single mistake or breach could have enormous consequences for our customers, our business, the Aerospace and Defense Industry, and national security.

Denial of service attacks are designed to make a machine or network resource unavailable to its intended users. Attackers can deny service to individual victims, such as by deliberately entering a wrong password enough consecutive times to cause the victim's account to be locked, or they may overload the capabilities of a machine or network and block all users at once. While a network attack from a single IP address can be blocked by adding a new firewall rule, many forms of Distributed denial of service attacks are possible, where the attack comes from a large number of points – and defending is much more difficult. Such attacks can originate from the zombie computers of a botnet or from a range of other possible techniques, including reflection and amplification attacks, where innocent systems are fooled into sending traffic to the victim.

A backdoor in a computer system, a cryptosystem or an algorithm, is any secret method of bypassing normal authentication or security controls. They may exist for many reasons, including by original design or poor configuration. They may have been added by an authorized party to allow some legitimate access, or by an attacker for malicious reasons; but regardless of the motives for their existence, they create a vulnerability. Backdoors can be very hard to detect, and backdoors are usually discovered by someone who has access to application source code or intimate knowledge of the operating system of the computer. Since the Internet's arrival and with the digital transformation initiated in recent years, the notion of Cybersecurity has become a familiar subject in both our professional and personal lives.