There is no shortage ofinnovation in cloud computing right now. AI workloads, serverless architectures and edge deployments are just a few examples. Yet ransomware is a threat that continues to dominate boardroom conversations despite having been around since the late 80s. The methods might have changed since those early attacks, but the business model hasn’t.
In fact, ransomware remains one of the most effective, disruptive, and profitable forms of cyberattack in operation today. Despite years of awareness campaigns and growing investment in cybersecurity, organisations are still getting caught out.
Ransomware in the Cloud
There is a persistent belief that moving to the cloud inherently improves security. The truth is a little more complicated, and in some ways, the shift to cloud-first environments can make it more complex to prevent ransomware attacks. Granted, hyperscale providers invest heavily in infrastructure security, redundancy, and resilience, far beyond what most organisations could achieve on-site. But that doesn’t eliminate risk, it merely changes where that risk sits.
Cloud security operates on a shared responsibility model. Providers secure the infrastructure; customers are responsible for how systems are configured, accessed, and used. And that’s where things often go wrong. Misconfigured storage, excessive permissions and exposed endpoints are just a few of the cracks that ransomware operators are increasingly exploiting.
Ransomware has evolved
Traditional ransomware attacks were relatively blunt instruments. A user clicked a malicious link, malware spread across a network, files were encrypted, and a ransom demand appeared. Today’s attacks are far more strategic. Modern ransomware groups operate more like businesses than hackers. They conduct reconnaissance, identify high-value targets and then move laterally across systems before deploying their payload. In many cases, data is exfiltrated before encryption even begins, thereby adding the threat of public exposure to the pressure of operational disruption. With their interconnected services and remote access points, cloud environments can provide a wider attack surface if they are not properly secured.
One of the most significant shifts in cloud security is the erosion of the traditional network perimeter. In a cloud-first world, identity becomes the primary control point. Compromised credentials are now one of the most common entry points for ransomware attacks. This might be through phishing, weak passwords or reused logins. Once inside, attackers can exploit over-permissioned accounts to gain access. This is particularly dangerous in environments where identity and access management policies have not kept pace with cloud adoption.
Ransomware is more than a security issue. It is also a business continuity risk. When systems go down, operations grind to a halt. For many organisations, even a few hours of disruption can have an enormous financial and reputational impact. In sectors like healthcare or logistics, the impact can be even more severe. People often assume that backup systems are the mitigating control, but they are not necessarily a silver bullet. Attackers increasingly target backup systems themselves, or time their attacks to maximise damage before detection. And even with backups in place, recovery can be slow, complex and costly.
Building a Resilient Cloud Strategy
We’ve all seen enough police procedural shows on TV to know that paying a ransom is never a good strategy, and is a last resort. The same applies in the real world and the cloud. The bottom line is that prevention and detection have to be the primary focus. That means going beyond basic security controls and taking a more proactive approach to risk. Organisations need to understand how ransomware attacks actually unfold and where their vulnerabilities lie. Then they need to have a clear vision on how to respond effectively when something goes wrong. Stopping an attack early is always going to be cheaper and easier than dealing with the aftermath. So what does effective ransomwaredefence look like in a cloud environment?
The first step is visibility. You can’t protect what you can’t see, so organisations need a clear understanding of their assets, users, and access points across cloud and hybrid environments.
The next step is access control. By applying the principle of least privilege, businesses can significantly reduce the impact of compromised credentials.
The third aspect is monitoring and detection. Modern threats move quickly, so the ability to detect unusual behaviour, identify potential breaches and then respond appropriately in real time can make all the difference.
The final consideration is resilience. Backups are still a valuable tool, but they need to be secure and isolated from the main environment. They also need to be routinely tested. Also, incident response plans need to be in place, and must also be periodically reviewed.
Making security part of the culture
Technology cannot provide protection in isolation. Many ransomware attacks are still triggered by human error, whether it is through clicking a link, approving a request or reusing a password. So training and awareness remain essential components of any security strategy. It’s all about creating a culture where security is part of everyday decision-making and employees feel confident about questioning unusual activity.
We mentioned earlier that ransomware has been around for more than 35 years. It isn’t going away and as technology evolves, it is becoming more sophisticated and more aligned with the realities of modern IT environments. The cloud environment has changed the playing field and for organisations that fail to adapt, the consequences can be significant. Because in today’s landscape, it is not a question of whether an attack will be attempted, but of whether you will be ready when it is.
