Ransomware Attacks See 50% Year-Over-Year Increase in Q3
Ransomware Attacks Surge 50% in Q3 2026, Fueled by Gang Rivalry
MITRE ATT&CK Techniques
Full Report(when first published)
Executive Summary
A report from Nord Security published on October 21, 2026, reveals a significant escalation in ransomware activity during the third quarter of 2026. The research documented 2,894 attacks between July and September, marking a 50% increase compared to the same period in 2025 and an 8.6% rise from Q2 2026. This surge is primarily attributed to a fierce rivalry between the two most dominant ransomware groups, The Gentlemen and Qilin, who are competing for market share and notoriety. The findings indicate that the ransomware landscape is rebounding and intensifying after previous law enforcement disruptions, signaling a persistent and growing threat to organizations worldwide.
Threat Landscape Analysis
The report highlights a stabilizing and increasingly competitive ransomware market. After major law enforcement actions against top-tier groups like LockBit and BlackCat in 2025, a power vacuum emerged. Now, new and existing groups are aggressively competing to fill that void. The 50% year-over-year increase is a clear indicator that ransomware remains a highly profitable and evolving criminal enterprise.
The primary engine of this growth is the intense competition between the top gangs. This rivalry incentivizes groups to innovate their TTPs, expand their affiliate networks, and increase their operational tempo to claim more victims and establish dominance.
Key Threat Actors
The report identifies a clear hierarchy in the current ransomware ecosystem:
- The Gentlemen: The most prolific group in Q3 2026, responsible for 383 documented attacks.
- Qilin: A close second, linked to 363 attacks. Together, these two groups accounted for over 25% of all attributable incidents.
- Inc Ransom: The third most active group, with 110 attacks.
- Other Notable Groups: Several other gangs, including Krybit, Akira, Deadlock, and Clop Leaks, each contributed nearly 100 attacks during the quarter, demonstrating a broad and active field of threat actors.
Analyst Assessment
The data suggests that ransomware is not a waning threat but is instead entering a new phase of heightened activity. The rivalry between groups like The Gentlemen and Qilin acts as a catalyst for the entire ecosystem, driving innovation in both malware capabilities and extortion tactics (e.g., double and triple extortion). Organizations can expect to see more aggressive targeting, more sophisticated TTPs, and potentially shorter dwell times as these groups compete for speed and impact. The stabilization of the market implies that these high levels of activity are likely to be the new baseline for the foreseeable future.
Impact Assessment
The direct impact of this surge is a greater number of organizations falling victim to disruptive and costly ransomware attacks. This leads to:
- Increased financial losses from ransom payments, business interruption, and recovery costs.
- A higher risk of data breaches as double extortion (data theft plus encryption) remains the standard tactic.
- Greater strain on security teams who must defend against a larger volume and variety of attacks.
The report did not specify which industries were most affected, but historically, ransomware groups are opportunistic, targeting sectors like manufacturing, professional services, healthcare, and education.
Mitigation Guidance
While the report focuses on attack trends, the fundamental defenses against ransomware remain consistent and more critical than ever:
- Security Hygiene: Focus on the basics, including strong password policies, regular software patching, and securing remote access services like RDP.
- Multi-Factor Authentication (MFA): Enforce MFA across all critical systems and accounts. This is a primary defense against initial access via compromised credentials.
- Network Segmentation: Divide the network into zones to prevent the rapid lateral spread of a ransomware infection.
- Immutable Backups: Maintain offline and immutable backups that cannot be deleted or encrypted by attackers. Regularly test your ability to restore from these backups.
- User Education: Train employees to recognize and report phishing, the most common initial infection vector for ransomware.
- Endpoint Detection and Response (EDR): Deploy EDR solutions to detect and respond to ransomware behaviors, such as mass file encryption and the deletion of shadow copies.
Timeline of Events
Article Updates
October 27, 2026
Qilin ransomware group continues active operations into Q4 2026, claiming new victims Aerotop S.A. and Aryza, with detailed TTPs now available.
Update Sources:
October 27, 2026
New analysis reveals ransomware groups are increasingly abandoning encryption for data-theft-only extortion, targeting SMBs and manufacturing, making attacks faster and increasing reputational risks.
Update Sources:
MITRE ATT&CK Mitigations
Multi-factor Authentication
The single most effective control for preventing initial access used by ransomware groups.
Mapped D3FEND Techniques:
Update Software
Patching vulnerabilities, especially on internet-facing systems, closes common entry points for ransomware affiliates.
Mapped D3FEND Techniques:
Network Segmentation
Proper segmentation contains the spread of ransomware, limiting the blast radius of an attack.
User Training
Regular security awareness training helps users identify and report phishing, a primary ransomware delivery method.
D3FEND Defensive Countermeasures
Given the surge in ransomware attacks from groups like The Gentlemen and Qilin, having a resilient and tested backup strategy is non-negotiable. Organizations must implement an architecture that includes immutable and offline backups. This means using cloud storage with object lock/immutability features or physical air-gapped media like tapes. It is critical to ensure that backup systems are on a separate, highly-secured network segment, with different credentials than the production environment, to prevent attackers from deleting them. Most importantly, restoration procedures must be tested quarterly at a minimum to validate the integrity of the backups and confirm that the organization's Recovery Time Objectives (RTO) can be met. A successful restore is the only guaranteed way to recover from a ransomware attack without paying the ransom.
To combat the opportunistic nature of ransomware gangs, organizations must enforce phishing-resistant Multi-Factor Authentication (MFA) across the entire enterprise. Ransomware affiliates frequently gain initial access by exploiting weak or stolen credentials. Implementing MFA on all external access points (VPN, RDP gateways, cloud applications) and for all privileged accounts is the single most effective control to block these initial access attempts. This significantly raises the bar for attackers, forcing them to find more complex and less reliable methods of entry. As groups like Qilin and The Gentlemen compete for victims, they often target the 'low-hanging fruit'—organizations without robust access controls. MFA is the best way to avoid being an easy target.
Deploying an Endpoint Detection and Response (EDR) solution capable of advanced process analysis is crucial for detecting ransomware pre-execution. Security teams should configure their EDR to alert on common ransomware precursor behaviors. This includes monitoring for processes like vssadmin.exe or wmic.exe being used to delete shadow copies, security software processes being terminated, or legitimate tools like PsExec being used for lateral movement. By creating high-fidelity alerts for these chains of behavior, security teams can often detect and isolate a compromised host before the final ransomware payload is executed and encryption begins, thereby preventing a major incident.
Timeline of Events
Start of Q3 2026.
End of Q3 2026, during which 2,894 ransomware attacks were documented.
Nord Security publishes its report on Q3 2026 ransomware trends.
Sources & References(when first published)
Article Author
Jason Gomes
• Cybersecurity PractitionerCybersecurity professional with over 10 years of specialized experience in security operations, threat intelligence, incident response, and security automation. Expertise spans SOAR/XSOAR orchestration, threat intelligence platforms, SIEM/UEBA analytics, and building cyber fusion centers. Background includes technical enablement, solution architecture for enterprise and government clients, and implementing security automation workflows across IR, TIP, and SOC use cases.
Editorial Standards & Analyst Review
CyberNetSec.io uses automation to assist source monitoring, deduplication, observable extraction, and structured intelligence generation. Published analysis follows human-defined editorial standards and adds defensive context including MITRE ATT&CK, D3FEND, STIX, and Sigma where applicable. Read our editorial policy.
Tags
📢 Share This Article
Help others stay informed about cybersecurity threats
🎯 MITRE ATT&CK Mapped
Every tactic, technique, and sub-technique used in this threat has been identified and mapped to the MITRE ATT&CK framework for consistent, actionable threat language.
🧠 Enriched & Analyzed
Observables and indicators of compromise (IOCs) have been extracted and cataloged. Risk has been assessed and correlated with known threat actors and historical campaigns.
🛡️ Actionable Guidance
Detection rules, incident response steps, and D3FEND-aligned mitigation strategies are included so your team can act on this intelligence immediately.
🔗 STIX Visualizer
Structured threat data is packaged as a STIX 2.1 bundle and can be visualized as an interactive graph — relationships between actors, malware, techniques, and indicators.
⚡ Sigma Generator
Sigma detection rules are derived from the threat techniques in this article and can be converted for deployment across any major SIEM or EDR platform.