We analyze the perceptions of Social Sciences faculty about their own information and digital competence and that of their students, as well as the changes that have occurred as a consequence of the virtualization of learning caused by the coronavirus pandemic (Covid-19). The methodology used is qualitative, being based on the application of two techniques: discussion groups carried out with experienced faculty from three Spanish universities, and interviews carried out with the same sample after the suspension of face-to-face teaching. The results show that the faculty members participating in this study have a critical vision of the information and digital competence of the student body, indicating that they lack capacity for evaluation, critical use, and communication of information despite their mastery of technological tools and extensive use of mobile devices. In addition, they doubt their own ability to train students in this competence, and attribute the difficulty in achieving and promoting such learning to various factors of the university culture: a lack of coordination among teaching staff, who are sometimes in situations of job insecurity, or the way in which the European Higher Education Area has been applied in universities. Faculty recognize the basic and transversal nature of this competence and advocate its incorporation into the real work methodology of all subjects, not in a segregated way. Finally, the effort made towards the “virtual” development of teaching as a consequence of the Covid-19 pandemic has been a shock for faculty, who declare a positive attitude towards reviewing their own digital-informative practices to adapt their teaching, but believe that this has hardly resulted in any improvement in the information and digital competence of their students so far.

According to the premise that the first step to try to solve a problem is to deepen our knowledge of it as much as possible, this work is mainly aimed at diving into and understanding crypto-ransomware, a very present and true-world digital pandemic, from several perspectives. With this aim, this work contributes the following: (a) a review of the fundamentals of this security threat, typologies and families, attack model and involved actors, as well as lifecycle stages; (b) an analysis of the evolution of ransomware in the past years, and the main milestones regarding the development of new variants and real cases that have occurred; (c) a study of the most relevant and current proposals that have appeared to fight against this scourge, as organized in the usual defence lines (prevention, detection, response and recovery); and (d) a discussion of the current trends in ransomware infection and development as well as the main challenges that necessarily need to be dealt with to reduce the impact of crypto-ransomware. All of this will help to better understand the situation and, based on this, will help to develop more adequate defence procedures and effective solutions and tools to defeat attacks.

After several years, crypto‐ransomware attacks still constitute a principal threat for individuals and organisations worldwide. Despite the fact that a number of solutions are deployed to fight against this plague, one main challenge is that of early reaction, as merely detecting its occurrence can be useless to avoid the pernicious effects of the malware. With this aim, the authors introduced in a previous work a novel anti‐ransomware tool for Unix platforms named R‐Locker . The proposal is supported on a honeyfile‐based approach, where ‘infinite’ trap files are disseminated around the target filesystem for early detection and to effectively block the ransomware action. The authors extend here the tool with three main new contributions. First, R‐Locker is migrated to Windows platforms, where specific differences exist regarding FIFO handling. Second, the global management of the honeyfiles around the target filesystem is now improved to maximise protection. Finally, blocking suspicious ransomware is (semi)automated through the dynamic use of white‐/black‐lists. As in the original work for Unix systems, the new Windows version of R‐Locker shows high effectivity and efficiency in thwarting ransomware action.