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How can you leverage your SIEM as part of your Zero Trust strategy? ​

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Continuous monitoring is one of the most important facets of any Zero Trust Architecture. The level of trust a system has in any user, application or data flow may change from one minute to the next, and, as things change, the platforms must be able to dynamically adjust. 

A robust SIEM Implementation is one of the most effective weapons you can leverage in the increasingly complex battle to secure your organization. The question is: how does your SIEM aid in mitigating risk as part of your larger Zero Trust Strategy?  

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What is the role of a SIEM and security analytics in a zero trust environment?

An essential principle of the Zero Trust approach to security is to maintain continuous visibility into the activities and behaviors of users and applications within the environment.  Deep visibility is critical, as users constantly interact with applications, data, and resources throughout the course of normal operations.  Environments are dynamic, and risk doesn’t end with initial authentication and authorization.   

A well-designed SIEM can provide the level of deep visibility required to ensure that the user remains trustworthy throughout the user’s cycle. Continuous collection of log data and telemetry, human alarm triage, and investigation of security analytics is an essential part of any Zero Trust strategy. 

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How can I leverage my SIEM as part of my zero trust strategy?

Visibility into the right data, at the right time.

Collecting log data and telemetry from key sources of data within and without the environment enables the continuous visibility into risk which underpins the principles of zero trust.  Critical data sets include user behaviors, Identity and Access Management (IAM) logs, network behaviors, security posture information and third party threat intelligence.   

Aggregating these in a SIEM enables cross-correlation of data sets and the development of baseline information which helps the security team distinguish between normal and abnormal.  Abnormalities could be the impetus for adjusting the level of trust, and the security platforms must be well-integrated to enable the automation of response actions.

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Leverage integration and automation to create automated risk-response workflows.

Tightly integrating the key tools a security program utilizes to provide siloed controls enables the creation of orchestration playbooks that be automatically executed when conditions are met.  Conditions to trigger an orchestration rule will vary from organization to organization, but commonly relate to malware, credential abuse, exploit traffic, new vulnerabilities, and other tactics, techniques and procedures which evidence a threat actor in the environment. By maintaining visibility and creating such playbooks based relevant to their environment, businesses can take countermeasures before damage occurs.   

A well-tuned SIEM extracts information from enormous data sets, with the goal of filtering the tiny fraction of events representing true risk out of the billions of points of data collected. With this capacity, an enterprise can constantly screen, conduct, and rapidly react to security events.  

Business environments grow more complicated every day.  Without visibility, tuning, and orchestration, the job of the security team quickly becomes untenable.   

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Leverage the right tools, and enlist the right partners to get the job done right.

As the threat landscape continues to evolve, so does the technology used by both the good guy and the bad guysHaving the correct SOC tools in place is critical to monitoring and detecting these increasingly complex attacks. Security analytics play an important role in sorting through what can seem like an infinite amount of security events. At Avertium, we empower our analysts to make the right decisions for our clients by tightly weaving a fabric of security built upon a foundation of SIEM, EDR, Vulnerability Scanning, Zero Trust Networking, and Threat intelligence.  We achieve high velocity in our security operations through implementation of best practices, exclusive Avertium correlation techniques, a focus on behavioral analysis, rigorous tuning and well-designed orchestration playbooks. 

In the constant fight against perpetually progressive cyberattacks, protectors must continuously develop expertise, tune tools, and execute processes to stay in front of the most modern threats.  

A Zero Trust approach utilizing SIEM and Security Analytics is one of the lone secure approaches to mitigating risk. As organizations develop maturity around threat detection and orchestrationthese tools can empower the continuous evaluation and calibration of trust  the true definition of zero trust. 

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