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Choosing an OT/ICS cybersecurity solution can be a long-drawn process if the right parameters are not considered.
Common pitfalls that need to be avoided while selecting an OT/ICS cybersecurity solution include
- Choosing a solution that offers features that are not relevant
- Choosing solutions that require a lot of customization thereby stretching the deployment
- Opting for multiple vendors that offer point solutions thereby turning the deployment into a jigsaw puzzle
In order to select the right solution, the right place to start would be to understand your unique needs before approaching a vendor. Such needs include your unique device landscape, the networks that support these devices, the presence or absence of remote sites, and the presence of legacy systems that require a unique security layer.
Sectrio has put together a set of factors that can be considered while going for a OT/ICS cybersecurity solution.
Factor: OT/ICS Asset visibility including inventory and situational intelligence
- Discover and report all devices in the OT environment along with their communications
- Asset map covering the asset type, models, and firmware version details
- Protocols used by devices
- Offer historic asset view screenshots
- Report any unauthorized behaviors by the devices
- Offer a visual map of assets, communications and device status
- Present the state of vulnerabilities and patches applied
- Changes in asset state over sessions
- Purdue level of the asset visualized
- Detect rogue devices
Factor: OT/ICS threat detection
- Use OT/ICS-specific threat intelligence for threat detection
- Anomaly-based detection capabilities with the ability to discriminate permitted associated anomalies
- Ability to learn using Machine Learning to eliminate false positives
- Ability to use Machine Learning to detect threats and identify the early manifestations of risks
- Improve SecOps efficiency by prioritizing attention to threats
- Use heuristics for threat detection
- Support custom threat detection models and the deployment of enterprise-level policy formulations and other compliance mandates
- Use globally-accessible knowledge base such as Mitre ATT&CK framework to detect and classify adversary behaviors
- Support threat modeling, security assessment, and defense strategies as per Mitre ATT&CK framework as well
- Support defense-in-depth measures to ensure use of multiple methods to detect and remedy threats
- Offer custom threat alerts for custom events
- Fine tune detection methodology to account for new suspicious behaviors
- Remediate incidents using playbooks
Factor: OT/ICS vulnerability management
- Identification of vulnerabilities that are specific to your OT environment
- Triages the severity of the vulnerability by using the scoring mechanism keeping into account business and severity
- Prioritizes vulnerabilities for remediation attention
- Gives a clear view of the patch management status
- Gives a risk scoreboard
Factor: eye-on-glass view of OT/ICS infrastructure
- Provide a 360-degree actionable view of the infrastructure
- Call out aspects that need attention
- Offer multi-tenancy with custom views across sites and roles
- Offer custom screens in the dashboard
- Report all events across views
- Offer custom reports for compliance reporting
Factor: OT/ICS cybersecurity solution configuration
- Enable custom configuration
- Identify changes to the network using audit trails
- Historic comparison data for critical aspects
- Raise alerts if any unauthorized changes are made to the devices or systems
Factor: OT/ICS cybersecurity solution implementation
- Offer implementation flexibility and speed
- Offer ease of integration with other solutions including those within the OT SOC
- Enable faster training of employees and ease of adoption
- Centralize data aggregation and reporting as per need
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