What explains the increase in attacks on the health sector?

The healthcare sector has become one of the main targets of cybercriminals in recent years, because hospitals, clinics, laboratories and operators deal with large volumes of sensitive data on a daily basis.

In addition, these sectors have critical systems and operations that cannot stop, which creates a highly attractive scenario for attacks.

Recent reports show that the vast majority of healthcare organizations have experienced at least one safety incident, and the frequency of these occurrences continues to grow.

More than a technological problem, this increase is linked to the combination of accelerated digital transformation, operational pressure, and gaps in safety culture. But after all, what really explains this growth?

In this article, we will analyze why the healthcare industry has become a priority target, what vulnerabilities are most exploited by attackers and what impacts these incidents can cause, including putting lives at risk.

We will also discuss the role of human behavior in incidents and why awareness and risk management strategies have become essential to reduce the exposure of organizations.

What are the main vulnerabilities in healthcare organizations?

Healthcare organizations operate in a complex technological environment, where different systems need to work in an integrated way to ensure continuity of care.

In this context, one of the main vulnerabilities is the presence of legacy systems and outdated equipment, which often cannot be easily replaced due to various circumstances such as:

• Cause of costs;

• Compatibility with medical devices;

• Regulatory Requirements.

  
  

These systems often have known flaws, lack of security updates, and technical limitations that make it difficult to implement modern protection controls, making them frequent entry points for attackers.

Another critical factor is the lack of continuous employee training , which still represents one of the largest attack vectors in the industry.

Healthcare professionals work under pressure, with a high operational load and full focus on patient care, which reduces the time and attention dedicated to safe practices in the use of technology.

This increases the risk of phishing email clicks, misuse of passwords, missharing of information, and installation of rogue applications.

Thus, without a structured awareness program, security tends to depend only on technical controls, which alone are not enough to prevent incidents.

In addition, the healthcare industry relies heavily on multiple vendors, integrations, and external applications, which significantly extends the attack surface.

Electronic medical record systems, laboratories, health plans, telemedicine platforms, and connected devices need to exchange data constantly, creating several connection points that can be explored.

Added to this is the growth of Shadow IT and the uncontrolled use of applications, when employees use unapproved tools to streamline routines, share files or communicate.

While often well-intentioned, these practices reduce security visibility and increase exposure to leaks, malware, and unauthorized access.

What are the most common attacks in the healthcare industry?

Cybercriminals know that these organizations deal with highly sensitive data and rely on systems that cannot fail, which makes the environment especially attractive for different types of threats.

In practice, some attack models appear more frequently in this segment, exploiting both technical flaws and user behavior.

Below, we'll look at what the most common types of attacks are in the healthcare industry and why they've been so effective.

Ransomware

Ransomware is one of the most frequent attacks in the healthcare industry because it exploits precisely what these organizations have most critical, which is the need to keep systems running at all times.

Hospitals, clinics, and laboratories depend on electronic medical records, scheduling systems, exams, and connected equipment to perform care, and any interruption can directly compromise the operation.

By encrypting data or blocking access to systems, criminals increase the pressure for the ransom to be paid quickly. In addition to the operational impact, ransomware usually generates more serious consequences than in other segments.

This is because the unavailability of information can delay diagnoses, interrupt surgeries, prevent access to patient histories, and affect clinical decisions.

In many cases, even after the ransom has been paid, there is no guarantee of complete data recovery, which reinforces the importance of prevention, secure backups, and awareness programs to reduce the risk of initial infection.

Phishing and social engineering

Phishing and social engineering attacks remain one of the main gateways for incidents in the healthcare industry.

This is because criminals send fake emails, messages, or links that simulate legitimate communications, such as internal notifications, supplier requests, system updates, or agreement information.

As professionals deal with a large volume of messages on a daily basis, it becomes easier to induce clicks on malicious links or the provision of access credentials.

This type of attack is especially effective in environments where routine is fast-paced and the focus is on patient care. Without continuous training, employees may not notice signs of fraud, allowing attackers to gain access.

From this point, the attacker can install malware, move laterally in systems, or prepare more complex attacks, such as ransomware itself. Therefore, awareness based on simulations and metrics is one of the most effective measures.

Leakage of sensitive data

 Data leakage is one of the biggest concerns for healthcare organizations because the information stored includes personal data, medical histories, test results, and patients' financial details.

This type of information has high value in the illegal market, and can be used for fraud, extortion, identity theft, and even blackmail.

Unlike other sectors, where a leak can generate financial loss, in health the impact also involves ethical, legal, and trust issues, making the consequences of these actions more critical.

Many of these incidents do not only happen due to sophisticated intrusions, but also due to internal control failures, improper access, or inappropriate file sharing.

In addition to the use of personal emails, unauthorized applications, and excessive permissions on systems, which facilitates the exposure of data without the organization noticing.

It is necessary to understand that reputational damage is only one of the consequences, after all, these actions can result in regulatory penalties, lawsuits, and sanctions related to the LGPD, further increasing the cost of an incident.

Attacks on connected medical devices

With the digitalization of healthcare, the number of medical devices connected to the network, such as monitors, infusion pumps, imaging equipment, sensors, and telemedicine systems, is also growing.

This ecosystem, known as IoT, expands the service capacity, but also increases the attack surface, because many of these devices were designed with a focus on clinical functionality, not security.

Resulting in authentication failures, unencrypted communication, or difficulty applying updates, when exploited, these vulnerabilities can allow unauthorized access to the network to the interruption of the operation of critical equipment.

In a hospital setting, this poses a risk that goes beyond technology, and can directly affect patient safety.

For this reason, the protection of connected devices requires strict network control, asset management, segmentation and constant monitoring, as well as integration between IT, clinical engineering, and information security teams.

Is it possible to reduce risks in the healthcare sector?

Reducing risk in the healthcare industry requires a continuous and structured approach that goes beyond the implementation of technical tools.

One of the most important pillars is the creation of data-driven awareness programs, capable of measuring the organization's real level of exposure and identifying which behaviors pose the greatest risk.

Instead of generic training, this model allows you to direct actions according to the profile of users, most vulnerable areas, and most frequent types of attacks.

With clear indicators, safety is no longer just a regulatory obligation and is now treated as part of operational risk management. Within this context, phishing simulations play a fundamental role in preparing employees.

This type of practice allows you to assess how people react to fraud attempts, identify patterns of error, and reinforce guidelines in a practical way, without impacting the operation.

When performed continuously, simulations help create a culture of attention and accountability, significantly reducing the chance that malicious emails, fake links, or fraudulent requests will escalate into security incidents.

Another essential point is to strengthen internal controls through access and privilege management, digital behavior monitoring, and clear policies for the use of technology.

Ensuring that each user has only the access they need for their role reduces the impact of compromised credentials, while monitoring allows you to identify non-standard activity before it causes damage.

At the same time, well-defined policies on the use of systems, applications, and information sharing help to avoid risky practices, such as the use of unauthorized tools or the improper storage of sensitive data.

When these measures are applied in an integrated manner, the organization is able to reduce the attack surface without compromising the agility required in healthcare.

PhishX in reducing attacks on the healthcare sector

Faced with a scenario where human behavior remains one of the main attack vectors, PhishX helps healthcare organizations reduce risk through a structured cybersecurity awareness program, based on real behavioral data.

The platform allows you to measure the level of exposure of employees, identify the most vulnerable users, and monitor the evolution of security maturity over time.

With automated campaigns, targeted training, and personalized phishing simulations, institutions are able to transform awareness into a continuous, measurable process aligned with business needs, without impacting the operational routine of the teams.

Want to know how? Contact our experts and learn more.

Attacks on the healthcare sector are growing exponentially.