One Article Review
| Source |  AlienVault Blog |
|---|---|
| Identifiant | 2352779 |
| Date de publication | 2021-02-15 11:00:00 (vue: 2021-02-16 00:05:29) |
| Titre | CISOs report that ransomware is now the biggest cybersecurity concern in 2021 |
| Texte | This blog was written by an independent guest blogger. As the number of remote working arrangements rose substantially in the last year, cybercriminals were quick to take advantage of these new opportunities. Spam and phishing emails increased in number even more rapidly than telecommuting, and company cybersecurity officers found themselves struggling to keep up. Phishing emails often came with a sinister sidekick - a ransomware attack. It is not surprising then that a recent survey of IT and cybersecurity officers revealed that ransomware attacks are the primary security concern for these professionals in 2021. Organizations have good reason to be concerned about ransomware attacks. Not only are they highly effective, but often companies find that it is simply easier to pay the ransom than try to rectify the problem. This is far from the best solution as it encourages the criminals to continue their attacks, fails to provide any long-term sense of security for the organization, and may incur liability for the organization. This article provides an overview of the rise of ransomware attacks and discusses how security professionals can prepare for and prevent attacks. The anatomy of a ransomware attack Ransomware is essentially a virus that loads onto a user’s computer, where it scans connected drives for files that it then encrypts. The user is also typically locked out of their machine and can only view a screen showing how to make a ransom payment. Ransomware attacks can take many forms, although the most common is to prevent a user from accessing encrypted files or using their machine until the ransom is paid (cryptocurrencies preferred). More malicious ransomware attacks threaten to release sensitive data to the internet broadly (doxware) or to delete data permanently. Ransomware can reach a user’s machine using a number of vectors, the most common of which is a phishing attack. However, malicious websites or popups may also provide access for ransomware attacks. Ransomware attacks can also be directly injected into an organization’s network through unsecured network connections (i.e. if no VPN is used). Or, even more simply, criminals may simply use brute force to hack weak passwords and directly insert the ransomware themselves. Ransomware can also attack vulnerabilities in applications arising during the software development process. It is therefore important to use testing methods, such as static and dynamic application security testing (SAST/DAST), that identify these security vulnerabilities continuously while your applications are running. The prevalence of ransomware attacks Overall ransomware constitutes a small portion of all malware attacks; however, they are also some of the most damaging forms of malware-based attacks as the financial and operational consequences can be devastating. The FBI saw a 37% increase in the reporting of ransomware attacks from 2018-2019, and an associated increase of 147% in financial losses. Average ransom demands also soared, reaching nearly $200,000 by the end of 2019. And the total average business costs resulting from a ransomware attack (post-attack costs, lost business costs, new cybersecurity investments, etc.) reached nearly $4.5 million as of early 2020. Exacerbating the ransomware concern is the fact that cybercriminals are now offering |
| Envoyé | Oui |
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| Tags | Ransomware Spam Malware Hack |
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