INC Ransomware Is Winning By Keeping It Simple
In a threat landscape filled with increasingly sophisticated cyberattacks, INC ransomware has carved out a dangerous and effective niche — not by being the most technically advanced group on the scene, but by being disciplined, methodical, and strategically ruthless. While other ransomware operators chase zero-day exploits and cutting-edge evasion techniques, INC has built its reputation on something far more reliable: mastering the basics and targeting the victims least able to absorb a prolonged disruption.
The result is a ransomware operation that has proven highly effective, particularly against organizations in critical sectors like healthcare, where the cost of downtime can be measured not just in dollars, but in human lives.
What Is INC Ransomware?
INC ransomware is a double-extortion ransomware strain that first surfaced in mid-2023 and has since been linked to a growing list of attacks across North America and Europe. Like many modern ransomware groups, INC operates under a Ransomware-as-a-Service (RaaS) model, meaning its core developers lease the malware and infrastructure to affiliates who carry out individual attacks in exchange for a cut of the ransom proceeds.
What distinguishes INC from its peers is less about its malware code and more about its operational philosophy. The group focuses on sectors where disruption creates maximum leverage — places where victims feel an almost immediate and unbearable pressure to restore operations as quickly as possible, making the decision to pay a ransom far easier to rationalize.
Why Healthcare Is the Perfect Target
Of all the industries that ransomware operators could choose to target, healthcare stands out for a deeply troubling reason: the stakes are extraordinarily high, and the margin for downtime is essentially zero. When a hospital's electronic health record system goes offline, patient care is directly compromised. Surgeries get delayed. Medication orders can't be confirmed. Emergency departments operate blind. In the most severe cases, patient safety is put at genuine risk.
INC ransomware operators understand this dynamic intimately. By targeting hospitals, clinics, and healthcare networks, they are not just encrypting files — they are creating a crisis that hospital administrators feel compelled to resolve within hours, not days. That urgency dramatically increases the likelihood of a ransom payment and often increases the size of that payment as well.
Healthcare organizations also tend to operate with legacy systems, tight IT budgets, and an overwhelming focus on patient outcomes rather than cybersecurity hardening. This combination makes them structurally vulnerable to even basic attack techniques, which aligns perfectly with INC's operational approach.
The "Master the Basics" Strategy
INC ransomware's success is a case study in the effectiveness of foundational attack techniques executed with precision. Rather than relying on novel exploits or highly complex malware, the group typically gains initial access through well-established methods that remain effective precisely because so many organizations still fail to defend against them.
Phishing and Credential Theft
A significant portion of INC attacks begin with phishing emails or the exploitation of stolen credentials. Attackers purchase valid login credentials from initial access brokers on dark web marketplaces, or they trick employees into handing them over through convincing phishing campaigns. Once inside, they move laterally through the network with legitimate credentials, making detection significantly harder.
Exploitation of Unpatched Vulnerabilities
INC affiliates have also been observed exploiting known vulnerabilities in widely used software and remote access tools, particularly those that have been publicly disclosed but not yet patched by target organizations. This is one of the most avoidable attack vectors in cybersecurity, yet it remains persistently effective because patch management is often deprioritized in resource-constrained environments.
Living Off the Land
Once inside a network, INC operators frequently use legitimate system administration tools — a technique known as "living off the land" — to move laterally, escalate privileges, and prepare for the ransomware deployment. Tools like PowerShell, Windows Management Instrumentation (WMI), and remote desktop protocols are used in ways that blend with normal network activity, making it harder for security teams to identify malicious behavior in real time.
Double Extortion
Before deploying their ransomware payload and encrypting files, INC operators exfiltrate sensitive data. This gives them a second lever of pressure: even if a victim has viable backups and could technically recover without paying, the threat of publicly releasing stolen patient records, financial data, or proprietary information creates an additional and often decisive incentive to pay the ransom.
The Broader Lesson: Sophisticated Threats Don't Require Sophisticated Techniques
One of the most important takeaways from the INC ransomware story is that organizations should not be lulled into a false sense of security by the assumption that only the most technically advanced attackers pose a serious threat. INC demonstrates repeatedly that basic techniques, applied with focus and patience against the right targets, are often more than sufficient to cause devastating damage.
This has direct implications for how organizations should prioritize their cybersecurity investments. The fundamentals — multi-factor authentication, prompt patch management, network segmentation, employee security awareness training, and tested backup and recovery procedures — are not glamorous, but they address the very attack vectors that groups like INC rely on most heavily.
How Organizations Can Defend Against INC Ransomware
Defending against INC ransomware does not require an unlimited security budget or a team of elite researchers. It requires consistent execution of proven best practices.
- Enforce multi-factor authentication (MFA) across all remote access points, email platforms, and administrative accounts to neutralize stolen credentials.
- Maintain a rigorous patch management program that prioritizes known exploited vulnerabilities, using resources like CISA's Known Exploited Vulnerabilities catalog as a guide.
- Segment your network so that a compromise in one area cannot easily spread to critical systems, limiting the blast radius of any successful intrusion.
- Conduct regular backups and, critically, test restoration procedures to ensure that backups are functional and isolated from the primary network environment.
- Train employees continuously on phishing recognition, since human error remains the most common entry point for ransomware attacks.
- Deploy endpoint detection and response (EDR) tools capable of identifying living-off-the-land behaviors and lateral movement before ransomware is deployed.
The Stakes Are Only Getting Higher
As INC ransomware continues to refine its targeting strategy and expand its affiliate network, the threat to healthcare and other critical infrastructure sectors will only intensify. The group's longevity and operational success serve as a reminder that cybercriminals don't need to reinvent the wheel — they just need to spin it faster and aim it at targets that can't afford to get hit.
For security leaders, the message is clear: the best defense against a group that masters the basics is an organization that masters them first. Investing in foundational cybersecurity hygiene, building a culture of security awareness, and planning for incident response before an attack occurs are the most reliable paths to resilience in an environment where ransomware threats like INC show no signs of slowing down.