![]() Does the backup plan cover temporary or consumer-focused cloud data stores? Cloud storage should be resilient against physical failure, but this will not protect against ransomware that infects files.īest practice for backup remains the 3-2-1 rule: make three copies of data, store across two different forms of media and keep one copy off-site.This is especially important now, given the move towards remote working during the Covid-19 pandemic. It is all too easy to miss critical data off a backup plan, whether they are held on local systems or in the cloud. CIOs should order a thorough audit of all business data locations. ![]() However, backups will only work if they are robust and comprehensive. Restoring from backups is more reliable, cheaper, and does not involve handing money to criminals. Even when an organisation pays a ransom, there is no guarantee that the attackers will hand over the decryption key. The best defence against malware is being able to restore data from clean backups. Using backup to protect against ransomware: Top five steps Security tools, including mail filtering, malware scanning, firewalls and network monitoring can help, as will patching and limiting network users’ access privileges.īut the most effective protection is a robust backup regime to protect data. But ransomware also spreads via direct attacks on servers, malware attachments to email, and via cloud resources.Īlso, According to the National Centre for Cyber Security, an increasing volume of ransomware now comes via exposed remote desktop protocol (RDP) services or unpatched remote access devices. Malware uses different routes to attack organisations, and social engineering plays a key part: About one-third of ransomware attacks come from users downloading malicious files or emails with malicious links. Whatever the target, ransomware has three main parts: the initial attack, or delivery of the malware payload encryption of the victim’s data and communications back to the attacker. Cyber security organisations are seeing slightly fewer attacks but, according to Sophos, what they do see is a shift from “mass market ‘spray and pray’ desktop ransomware” to targeted attacks aimed at businesses. Over the last few years, ransomware attacks have become more focused and potentially more damaging. In this article, we run through the top five key things to get right with backup so that your organisation is best protected from ransomware. It also means backup policies and practice should be regularly reviewed and tested. That means ensuring that good, clean backups are made regularly and that they are thorough and comprehensive, quite possibly “ air gapped” too. So, the key to being able to avoid ransomware demands is to have robust and well-tested backups. ![]() Most organisations did retrieve their data, but twice as many did so from backup than by paying the ransom, and the cost to them was less than half what it was to those who paid up. ![]() Meanwhile, Research by Sophos has found that half of organisations were attacked by ransomware in 2019 and in almost 75% of cases, the attackers were able to encrypt data. According to security supplier Trustwave, ransomware attacks outstripped payment card information theft last year. Ransomware is today’s fastest-growing cyber crime threat. ![]()
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