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Roles and responsibilities in cybersecurity
Published in Nikki Robinson, Mind the Tech Gap, 2023
Organizations are now understanding the impact of not having a robust cybersecurity program. Those implications include losing revenue, reputation, or even having to shut down their entire company due to cybersecurity attacks. Ransomware has made a devastating impact on all manner of organizations, and some companies are never able to financially recover. In brief, ransomware is a form of cyberattack where files are encrypted by a malicious actor and the organization must pay a ransom to receive the decrypt key (Richardson and North, 2017). Without access to files or systems, ransomware may shut down a company for weeks or months, unless a ransom is paid to the individual/s behind the attack. And ransomware is only one form of attack that is easier and easier to conduct, especially with the birth of Ransomware as a Service (RaaS) companies. These companies create and distribute RaaS to malicious actors of all variety to make these types of attacks even simpler to conduct.
Healthcare information security and assurance
Published in Abbas Moallem, Human-Computer Interaction and Cybersecurity Handbook, 2018
Ulku Yaylacicegi Clark, Jeffrey G. Baltezegar
In recent years, a new type of malware, called ransomware, has created a need for organizations to review their existing BCP and DRP documents to ensure that they are effective in stopping it. Ransomware typically infects a system through an e-mail attachment, by clicking a link in a phishing e-mail or by plugging in an infected universal serial bus drive. Once the ransomware has infected the system, it begins to encrypt all data that does not belong to the host operating system. After the encryption process is complete, the user is notified that their data are inaccessible, and a fee will need to be paid to regain access. The encryption used by ransomware is typically unbreakable, leveraging public key cryptography that is commonly used to protect confidential data while communicating with websites over the World Wide Web. To increase the pressure to pay the ransom as quickly as possible, the attackers may only give the victim a few days to pay the ransom, at which point the attacker destroys the decryption key and access to the stolen data are lost.
An Overview about the Cyberattacks in Grid and Like Systems
Published in Fadi Al-Turjman, Smart Grid in IoT-Enabled Spaces, 2020
Ransomware is malicious software that gains access to sensitive information within a system, encrypts that information so that the user cannot access it, and then demands a financial payout for the data to be released. It is commonly part of a phishing scam. By clicking a disguised link, the user downloads the ransomware. The attacker proceeds to encrypt specific information that can only be opened by a mathematical key they know. When the attacker receives payment, the data is unlocked.
The Impact of Online Training on Facebook Privacy
Published in Journal of Computer Information Systems, 2018
Karen H. Smith, Francis A. Méndez Mediavilla, Garry L. White
Most of this research has examined the use of employee training programs in business privacy; however, it is likely that user training can similarly reduce adverse consequences of a personal nature. For example, ransomware encrypts a user’s computer files and then demands payment for decryption [29]. Most ransomware infections come from a user opening an unknown e-mail attachment or careless browsing and download from a malware-embedded Web page. The best countermeasure for this malware is training [29]. Likewise, training about how to understand and strengthen their privacy settings on Facebook can result in greater security and privacy for users.
A survey of phishing attack techniques, defence mechanisms and open research challenges
Published in Enterprise Information Systems, 2022
Ransomware is a malware that can be delivered via a phishing email. Ransomware and phishing together can create severe problems as they disable user’s access to organisation’s data, necessary files, intellectual property and some other valuable content (Best Practices for Dealing With Phishing and Ransomware 2016; Mansfield-Devine 2016). Generally, Ransomware encrypts victim’s data and asks money from user to decrypt the data.
Cryptocurrency valuation and ethics: a text analytic approach
Published in Journal of Management Analytics, 2020
James R. Barth, Hemantha S. B. Herath, Tejaswini C. Herath, Pei Xu
Ransomware, is a type of malicious software that prevents users from accessing their system or personal files by locking them or encrypting them, and then demanding ransom payment– typically to be paid in Bitcoin – in order to regain access.