# An Effective Blockchain-Based Defense Model for Organizations against Vishing Attacks
## 2 Related Work  
Existing research and models aiming to protect organization assets from SE attacks targeting the psychological status of the victim are scarce. We did not identify any model that dual controls potential transactions, and no approach that uses blockchain to implement security principles to deal with SE attacks. An organization's employees can utilize the methodology suggested in papers [12; 18] to find social assaults in engineering in a contact center setting. The model is a quick and effective technique to see if the requester is attempting to coerce an individual into providing details for which the requester does not have permission. The psychological and computer science viewpoints are the two basic approaches of SE. The psychological viewpoint is concerned with the individual's emotional condition and cognitive capacities. One of the cornerstones of information security is information sensitivity, addressed from a computer science perspective. Social engineers exploit a variety of psychological vulnerabilities and triggers, which have been identified. Strong effect, overloading, reciprocation, deception, diffusion of responsibility and moral duty, authority and integrity, and consistency are among them. Human characteristics, such as our limited ability to digest information, our use of heuristics (cognitive process or shortcuts designed to make judgments simple, which might lead to a major error), individual interests, and our susceptibility to emotional manipulation. The authors of [12] propose an SE attack detection defense model (SEADM), which uses a decision tree composed of several manageable components to help in the decision making in possible SE attacks. The first and most crucial stage in this paradigm, and one that must be considered throughout the process, is for the person to be aware of and analyze their emotional state regularly. The subject should assess the emotions elicited by the requester, as exploitation of psychological vulnerabilities is designed to provoke specific emotional states in order to obtain information. People are more likely to be SE victims if they are in a state of negative emotions: the level of focus is low, impatience and frustration are strong, and an individual may offer information to a requester to get rid of them. It is crucial to note that assessing one's emotional conditions can be time-consuming, and some people cannot do so. As a result, an electronic questionnaire for automatic self-evaluation would be implemented, the correct completion of which would lead to the right decisions. The phone or email request should be passed to another person if the individual or the self-evaluation questionnaire indicates that the person is extremely emotional. Unfortunately, there is a chance that some people may use this as a means of assigning someone else their work responsibilities, which will just irritate everyone. The risks of SE, such as obtaining privileged knowledge, can result in significant losses for the institution. SEADM was established as a non-deterministic flowchart that relies on extensive qualitative sub-procedures in order to serve as a model for identifying SE attempts in their initial stages. An enhanced version proposed by [19] concentrates on formalizing the SEADM's most recent iteration into an abstract deterministic finite-state automation. Their research effort intends to improve the extensibility of the SEADM and reduce the complexity of its implementation by rebuilding the operation to be cycle-free and predictable. The I-E model, which is based on human vulnerability, was utilized to achieve socialization in the publication [20]. The vulnerabilities exploited by various SE techniques were examined, and several defensive approaches to fix human flaws were deduced based on this model. The report identifies pieces of malware that have been activated through SE routes, including psychological and technical ruses. Some persuasive psychological approaches include victim curiosity, empathy, excitement, fear, and greed.