Ransomware is the most serious cybersecurity threat of our time. Last year, attacks rose by 32% with over 7,400 incidents worldwide.
But it’s not just the volume that’s changing. The types of ransomware are evolving too. Attackers are moving beyond simple encryption toward data theft, double extortion, and even attacks that skip encryption entirely. Understanding the different types of ransomware is crucial for building an effective defense strategy.
Here are the eight most dangerous types of ransomware in 2026 and what you can do about each one.
There Are More Types of Ransomware Than Ever
A few years ago, ransomware fell into two main categories: Crypto (encrypts your files) and Locker (locks you out of your system). Today, the landscape is far more complex. New models have emerged, each with a different way of causing damage and extracting payment.
Some variants encrypt files. Some steal data and threaten to leak it. Some do both. And a growing number skip encryption entirely, relying purely on the threat of exposure. Knowing the specifics of each type helps you tailor your defenses and response plans accordingly.
What Are the Main Types of Ransomware in 2026?
There are many different types of ransomware, and new forms are being developed every day. Nonetheless, here are the eight most important types of ransomware in 2026:
- Crypto Ransomware
- Leakware / Exfiltration-Only Ransomware
- Double Extortion Ransomware
- Ransomware-as-a-Service (RaaS)
- Wiper Ransomware
- DDoS Ransomware
- Locker Ransomware
- Scareware
1. Crypto Ransomware
Risk Level: High
Crypto ransomware is the original form of ransomware. It’s essentially data kidnapping, and it’s still commonplace and highly damaging.
Crypto ransomware attacks typically infiltrate through malicious emails, websites, or downloads. Then, the ransomware encrypts files on the victim’s computer, including documents, multimedia, and sometimes even backups, rendering them inaccessible.
This type of ransomware can also attempt to encrypt files on network and cloud drives. The attackers then demand a ransom, usually via cryptocurrency, in return for the decryption key.
Crypto ransomware can result in the permanent loss of vital data. Even if the victim pays the ransom, there is no guarantee that the hackers will hand over the decryption key. Well-known examples include WannaCry, CryptoLocker, and Locky.
Best Security Strategy:
Implement advanced ransomware protection that includes the storage layer, train employees on how to recognize phishing attempts and maintain regular, secure backups of all critical data.
2. Leakware / Exfiltration-Only Ransomware
Risk Level: High
This is the newest and fastest-growing category. Exfiltration-only ransomware skips encryption entirely. Attackers steal data and threaten to leak or sell it unless the victim pays, but they never lock any files or systems.
In January 2026, the group WorldLeaks claimed to have stolen 1.4TB of internal data from Nike, nearly 189,000 files spanning product designs, manufacturing workflows, and supply chain documentation. They didn’t encrypt a single file. They simply took the data and threatened to leak it.
This type of attack is particularly dangerous because many traditional ransomware defenses are designed to detect encryption activity. If there’s no encryption, there are no file extension changes, no bulk write patterns, and no ransom note on screen. The attack can go completely unnoticed until the extortion demand arrives.
Best Security Strategy:
Defending against exfiltration-only attacks requires monitoring that goes beyond encryption detection. Watch for unusual outbound data transfers, abnormal file access volumes, and suspicious user behavior at the storage level.
And remember: backups won’t help you here. If the data has already left the building, getting your systems back online doesn’t prevent a breach.
3. Double Extortion Ransomware
Risk Level: Very High
Double extortion is now the dominant ransomware model. Attackers steal sensitive data AND encrypt systems, then demand payment both for the decryption key and to prevent the stolen data from being leaked publicly. This two-pronged approach gives attackers maximum leverage because even if the victim can restore from backups, they’re still facing a data breach.
Some groups are now practicing triple extortion, adding a third layer of pressure by contacting the individuals whose data was stolen and demanding separate payments from them.
Best Security Strategy:
Double extortion requires defenses on two fronts. You need to prevent data exfiltration by monitoring for signs of ransomware at the storage level, and protect your backup systems against encryption. Neither alone is enough.
4. Wiper Ransomware
Risk Level: Very high
Wiper ransomware looks like conventional ransomware but is much more destructive. Instead of simply encrypting data, Wiper permanently deletes or corrupts it, leaving no chance of recovery, even if a ransom is paid.
The primary aim is not financial gain but disruption and destruction, often linked to cyber warfare or vendettas against specific organizations or countries. This type of attack can completely wipe out system functionality, erase critical data, and disrupt organizational operations, posing a severe threat to businesses and governments.
Best Security Strategy:
Adopt a zero-trust approach and ensure your cybersecurity strategy is multi-layered to prevent wiper ransomware from infiltrating your organization.
5. Ransomware-as-a-Service (RaaS)
Risk Level: High
Ransomware-as-a-Service (RaaS) operates on a subscription or affiliate model, similar to legitimate cloud services. It essentially enables any criminal to launch a cyber attack—no hacking skills needed. Cybercriminals can rent or purchase ransomware from RaaS providers, usually via the dark web, complete with customer support and other services.
The RaaS model has made ransomware more common, democratizing access and enabling a broader range of actors to launch ransomware attacks. The ease of use, combined with the potential for high returns, makes RaaS a particularly troubling trend.
Best Security Strategy:
Implement comprehensive ransomware protection, conduct regular security training for all staff and maintain a ransomware response plan.
6. DDoS Ransomware
Risk Level: Moderate
How It Works:
DDoS (Distributed Denial of Service) ransomware is different from typical ransomware because it attacks network services rather than encrypting files.In DDoS attacks, attackers overwhelm servers with bogus traffic to incapacitate network resources and services. The flood of requests usually comes with a ransom note, promising to cease the attack upon payment.
DDoS attacks don’t directly threaten data, but they can significantly disrupt business operations and services, leading to substantial indirect costs and damages. These attacks are resource-intensive for the attackers, so they tend not to last long, but they still cause serious disruptions to the business.
Best Security Strategy:
Regularly monitor network traffic for unusual patterns or spikes that might indicate a DDoS attack.
7. Locker Ransomware
Risk Level: Low
How It Works:
Locker ransomware, also known as “screen lockers,” is notorious for locking users out of their systems.
Locker mainly targets Windows systems, usually residing in the C:\Windows\SysWOW64 directory and spreading to the directories C:\ProgramData\Steg\ and C:\ProgramData\rkcl\. The ransomware then restricts access to the system and files and displays a ransom note with a countdown timer on the infected machine’s screen upon boot-up or login.
Users might find themselves unable to use the mouse and keyboard or access the desktop, though the core data generally remains unencrypted and intact. This type of attack is less sophisticated, often allowing for recovery through safe mode boot-ups and antivirus software.
Best Security Strategy:
Regularly update your operating system and all installed software to patch vulnerabilities that Locker ransomware might exploit.
8. Scareware
Risk Level: Very Low
How It Works:
Similar to fake ransomware, Scareware leverages social engineering to exploit victims’ fear, usually by displaying fake security alerts or system problems. These pop-up windows may imitate legitimate security software logos, falsely informing users of a malware infection and urging them to purchase and install software to fix these invented issues.
This so-called “antivirus” software might be entirely useless or, worse, contain actual malware. While scareware doesn’t typically affect the data on a computer, it relentlessly bombards the user with deceptive pop-ups and can lead to further infection if the user downloads malicious software.
Best Security Strategy:
Invest in reputable security solutions and educate users to be skeptical of scareware attempts, as well as other types of spam and phishing emails.
Protect Your Company From All Types of Ransomware
The ransomware landscape in 2026 is more varied than ever, with attackers choosing from a toolkit that ranges from classic encryption to pure data theft. No single defense covers every type, which is why a layered security approach is essential.
ProLion DataDefense monitors all data access to your storage systems in real time, detecting threats like bulk encryption, unusual file access patterns, and suspicious behavior. It blocks attacks automatically before they spread, and when damage does occur, granular file-level visibility lets your team restore only the affected files from snapshot.
Watch the demo to see how it works, or check out our beginner’s guide to ransomware to build a comprehensive defense strategy.
Frequently Asked Questions
What type of ransomware is most common in 2026?
Leakware (double extortion) is now the dominant model. Attackers steal data before encrypting systems, then threaten to leak it publicly unless the victim pays. This approach has largely replaced pure encryption attacks because it gives attackers more leverage, even if the victim has backups, the stolen data can still be weaponized. Exfiltration-only attacks, where there’s no encryption at all, are also growing rapidly.
What’s the difference between crypto ransomware and leakware?
Crypto ransomware encrypts your files and demands payment for the decryption key. Your data stays on your systems but you can’t access it. Leakware adds a second threat: the attackers steal your data before encrypting it and threaten to publish or sell it if you don’t pay. This means even if you can restore from backups, you’re still dealing with a data breach. Some attacks now combine both tactics.
Can ransomware attack without encrypting files?
Yes, and this is a growing trend. Exfiltration-only groups like WorldLeaks steal data and threaten to leak it without ever encrypting anything. This makes the attack harder to detect using traditional methods that look for encryption patterns or file extension changes. It also means that backups, while still essential for recovery, won’t prevent the breach. Monitoring and a solid ransomware detection strategy are critical for catching these attacks early.
