In 2013, Gartner analyst Anton?Chuvakin?coined the term “endpoint detection and response” (EDR) to describe emerging security solutions that detect suspicious endpoint activity. Since then, the market has exploded?¡ª?spawning next-generation variations like extended detection and response (XDR) and?Managed EDR?that now dominate the?endpoint?detection and response landscape.?
EDR has also evolved beyond its original scope.?According to Arctic Wolf research,?nearly half?of all organizations now use two or more next-generation endpoint security solutions that extend into broader network telemetry, including email and identity sources.?
So where does EDR fit?into?your security strategy today??Let’s?take a closer look.?
What Is EDR?
Endpoint detection and response (EDR) in cybersecurity refers to a host-based security solution that monitors endpoints within an organization¡¯s IT environment to detect and respond to malicious and/or anomalous activity that originates from internal or external sources.?
Gartner? defines the security solution as one that ¡°records and stores endpoint-system-level behaviors, uses various data analytics techniques to detect suspicious system behavior, provides contextual information, blocks malicious activity, and provides remediation suggestions to restore affected systems.¡±?
EDR vs. EPP
While often connected, EDR is?not the same as?endpoint protection platform (EPP) solutions. EPP refers to multiple technologies (like antivirus software?and firewalls) meant to protect a network¡¯s endpoint from cyber threats like malware?using techniques such as?signature-based detection, machine?learning, and host-based intrusion?prevention.?EDR, however, is focused on monitoring endpoints and offers threat detection, investigation, and response capabilities.?In today¡¯s threat landscape,?it¡¯s?common for organizations to use both EDR and an endpoint solution like EPP to enhance their endpoint security.??
How Does EDR Security Work?
An effective EDR solution allows security teams to focus on detecting and investigating suspicious activities on endpoints, creating faster, more effective responses. EDR allows organizations to focus on proactive cybersecurity, taking in and acting on data around their endpoints before a threat escalates.?
EDR works by installing a lightweight agent?on endpoints within the organization. The agent monitors 24¡Á7, looking for any activity that is potentially malicious or matches a known attack indicator.?The agent?then sends?telemetry?to a central management system, which automatically performs analysis and correlation before sending an alert.?
From there, an analyst investigates the alert to?determine?if the attack is false or actionable. If real, they can gather details about the attack and, based on this information, develop?an appropriate response. Having this response capability is what differentiates EDR from other endpoint-focused security solutions.?And, as many attacks involve?endpoints,?that?capability has helped?EDR?become a?critical?component?of?any cybersecurity strategy.??
While EDR features vary, most include the ability to isolate the host system from the rest of the network to prevent the attack from spreading to other endpoints in the environment.?In addition to isolation capabilities, some EDR vendors offer advanced or active responses, such as?terminating?processes.?
EDR has also evolved to?utilize?artificial intelligence (AI) and machine learning (ML) capabilities?to detect threats faster?and?with more precision, as well as?to?automate response actions.?This technological advancement allows for advanced detection, noise reduction, faster investigations, and predictive defense capabilities.??
EDR in Action
A finance employee at a mid-sized company clicks on?what appears to be a?legitimate invoice email. Unknown to them, the attachment contains?malware, which attempts to?execute on?the endpoint in order to spread across the network. The organization’s EDR solution detects?the abnormal?behavior,?and flags?both?the unusual file encryption activity and the process?attempting?to communicate with an external command-and-control server. The EDR?solution?automatically isolates the infected endpoint from the network,?terminates?the malicious process, and alerts the security team with detailed forensic data showing exactly how the attack unfolded.?
What Are the Benefits of Endpoint Security?
The endpoint is often a top target for?threat?actors. If they can reach the endpoint, they can launch malware, ransomware, or other attacks?that?can?spread across a network. It?can?also give?threat?actors?access to?other aspects of?an organization¡¯s IT environment, like networks?and the cloud.?This makes EDR security not only beneficial, but?foundational for organizations looking to improve their cybersecurity.?
EDR security has a few components that make it unique from other detection solutions, including:?
- Automatically detecting endpoint threats?
- Utilizing advanced technology to constantly?monitor?endpoints?
- Working proactively to prevent major breaches?
Additional Benefits of EDR Solutions
Visibility
Visibility is critical not only for being able to understand vulnerabilities or threats within a security environment, but for assessment and action. Real-time visibility helps an organization act against malicious threats before major damage occurs.?
Behavioral protection
Unlike tools that only?monitor for?known threats, EDR can?identify?new, suspicious activity and flag it as a?possible threat?for the IT or security team. Many EDR solutions now employ machine learning (ML) or artificial intelligence (AI) to better understand user and system behavior patterns?and?make threat identification more precise.?
Insight and context
Insight is as critical as visibility. To further the security journey, an organization needs to understand where threats are coming from and why they need to harden their endpoints and overall environment. Insight and context also help?at the moment?of attack, allowing an organization to tailor their response to a threat¡¯s specific characteristics.?
Remediation speed
If an organization can quickly?identify?a threat and respond accordingly, that speeds up remediation ¡ª accelerating the investigation and limiting?breach?damage. It also allows an organization to ¡°stop a threat¡± instead of ¡°respond?to an incident,¡± meaning it can shut down suspicious behavior or a threat actor trying to make initial access versus having to respond to a full-blown?cyber attack?where lateral movement and escalation?has?possibly occurred.?
Operational efficiency through noise reduction
EDR’s common use of behavioral analytics and machine learning helps filter out noise and reduce false alerts, allowing security teams to focus on genuine threats rather than wasting time investigating benign activity.?
Threat containment
EDR solutions can automatically isolate compromised endpoints from the?network?the moment a threat is detected, preventing lateral movement and stopping attacks before they escalate into serious incidents or data breaches.?
Despite these significant benefits, organizations often face challenges when implementing EDR.?
Common Issues with EDR Solutions
While EDR provides foundational endpoint protection?that’s?vital to any organization’s cybersecurity strategy, implementing and managing it effectively can present significant challenges?¡ª?particularly for small and medium-sized enterprises (SMEs).?
The main issue with these solutions is?an?organization¡¯s?inability to manage them in-house.?Before organizations can fully leverage EDR capabilities and the telemetry they provide, they need security professionals who understand how to configure, tune, and?maintain?these solutions.?
Several factors make in-house EDR management difficult, including:?
- Budget?constraints?
- Resource constraints?
- Complexity and?expertise?gaps?
- Incomplete deployment?
This is where managed EDR (mEDR) comes in.?
The Value of Managed EDR
Managed endpoint security?pairs?technology with a dedicated security operations team ¡ª often available 24×7 ¡ª to handle monitoring, investigation, and containment on an organization¡¯s behalf.??
This model can:?
- Provide expert-led investigations and faster incident response times?
- Reduce alert fatigue and operational burdens on security teams?
- Eliminate?the need for more IT and security staffing?
- Ensure?continuous?fine-tuning for improved threat detection and response?
- Lower the total operational cost without sacrificing security quality?
- Support scalability of an endpoint security program?
EDR vs Other Detection and Response Solutions
While endpoint detection and response solutions are still a cornerstone of cybersecurity, both security and the threat landscape have evolved in recent years. Not only are organizations more fragmented, cloud-centric, and access-focused than ever before, but threat actors have created new ways of exploiting weaknesses in defenses, and learned how to manipulate legitimate access, bypass endpoints,?or?utilize?other methods to launch sophisticated attacks.?
As such, newer detection and response solutions have gained ground in the market, primarily?managed detection and response (MDR) and extended detection and response (XDR).?
EDR vs XDR
XDR?goes beyond the endpoint, pulling in other sources of telemetry including network, users, and more (depending on the specific solution), to correlate alongside endpoint data. This gives an organization broader visibility, allowing them to make better threat detection and response decisions. EDR is a vital?component?of XDR, but?it is?only one part of it.?XDR can also be native, which only draws upon the XDR provider¡¯s portfolio, or open,?leveraging?multiple tools, vendors, and security telemetry sources to meet an organization¡¯s needs.?
EDR vs MDR
Managed detection and response (MDR)?and EDR are not an ¡°either/or¡± choice for organizations.?Rather, EDR is a?component?of MDR, which?utilizes?the same endpoint detection features and expands coverage beyond endpoints?to provide more comprehensive coverage across the IT environment, all while being managed by a third-party,?alleviating?operational burdens for security teams.??
An MDR solution goes beyond endpoints to offer multi-dimensional monitoring of endpoint, network, identity, and cloud workloads. With this holistic oversight, organizations are better able to effectively?identify?and respond to threats no matter where they originate.?
Going Beyond EDR For Holistic Security
Endpoint security helps organizations begin their journey to build resilience, reduce risk, and transform their cybersecurity strategy, but endpoint security alone is not enough to stop sophisticated attacks in a rapidly evolving threat landscape.?
The best security is one?that¡¯s?both proactive and reactive, and one that understands that the endpoint is just one of many components that needs strong defense.?Arctic Wolf not only offers AI-powered, market leading endpoint protection, but has integrated endpoint security into a larger, holistic?security operations approach.?Arctic Wolf Security Operations Bundles?offer comprehensive risk reduction for your organization,?helping your business reduce attack frequency and severity, while creating risk transfer opportunities.?
Learn more about?Arctic Wolf¡¯s Security Operations approach.?
Not sure which endpoint security solution is best for your organization¡¯s needs? Examine the marketplace in?depth with?our complete guide.?
