Endpoint Detection and Response, or EDR, is an endpoint security solution that continuously monitors end-user devices to detect and respond to cyber threats such as ransomware and malware.
Endpoint Detection Response is defined as a solution 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.”
How EDR Works
Endpoint Detection Response security solutions record the activities and events that take place on endpoints and all workloads, while it provides security teams with the visibility they require to uncover incidents that would otherwise remain non-detectable. An Endpoint Detection Response solution must provide continuous and comprehensive visibility into what is taking place on endpoints in real time.
An Endpoint Detection Response tool can offer advanced threat detection, investigation and response capabilities, including incident data search and investigation alert triage, suspicious activity validation, threat hunting, and malicious activity detection and containment.
Endpoint Detection Response is considered the next generation Endpoint Protection because it uses a modern, sophisticated, and data-centered approach to preemptively detect malicious activity and respond to threats before endpoint compromise occurs. It can also be configured to automatically remediate a host if it is compromised.
You might be wondering what the difference is between Endpoint Detection Response and Endpoint Protection, or AV. In essence, Endpoint Protection finds evidence of compromise (anti-virus) and Endpoint Detection Response detects malicious behavior that could result in compromise.
EDR uses multiple monitoring points to detect attempts to compromise the system. EDR scans memory, running processes, network activity, and common attack rule sets to preemptively stop threats before they can change files or exfiltrate data.
Traditional endpoint protection is a requirement for many organizations and an EDR solution complements it for the best possible endpoint coverage.
EDR is designed to be integrated with other products in the environment. Whether it is shipping log files to a SIEM or exposing an API for customized response, it is intended to be highly configurable and tunable.
Why EDR is Important for Your Business
We live in an era that, if given enough motivation, resources, and time, adversaries will at some point devise a way to penetrate your defenses, no matter how advanced they are. Here are just some of the main reasons why Endpoint Detection Response should be included in your endpoint security strategy and managed IT services.
Adversaries Can be Inside Your Network for Long Periods of Time and Return at Will
As a result of silent failure, attackers can roam around in your environment, often creating back doors that enable them to return whenever they want to. In the majority of instances, an organization or business discovers the breach from a third party, like its own customers or suppliers, or from law enforcement.
Access to Actionable Intelligence is Required to Respond to an Incident
Your business may not only lack the visibility required to understand what is happening on its endpoints, it may not be equipped to record what is relevant to security, store it and then recall the information quickly enough when needed.
Securing the Data is Just Part of the Solution
Even when you have accessed the data, security teams need the resources that are necessary to analyze and take full advantage of it. It is for this reason that many security teams discover that soon after they have deployed an event collection product, like SIEM, they are usually encountering a complex data issue.
Challenges exist around what to look for, speed, and scalability begin to emerge and other problems surface before their primary objectives can even be addressed.
If prevention fails, your business could be left in the dark by its existing endpoint security solution. Adversaries can leverage this situation to roam and navigate inside your network.
Your Business Lacks the Visibility Required to Effectively Monitor Endpoints
After you have identified a breach, your business could spend many months attempting to remediate the incident because it doesn’t have sufficient visibility to see and understand what actually happened, in addition to how it happened, and how to fix it. Meanwhile, the infiltrator returns within a matter of days.
Remediation Can be Lengthy and Costly
Your business could spend weeks attempting to determine what actions to take. Typically, the only choice is to reimage machines, and that can disrupt business processes, lessen productivity, and finally cause major financial loss.
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