Spotting Network Credential Theft
CHALLENGE
Preventing Unauthorized Access to My Industrial Network
If one of your employees or suppliers uses valid credentials to gain unauthorized access to your industrial network, would you know about it? How long would it take?
What if they give their credentials to a remote threat actor who then inserts malware onto your control network and deletes log files to disguise their activity? What if a maintenance worker without permission to connect to your industrial network does so anyway – and deliberately or accidentally introduces malware?
Cybersecurity threats come in multiple forms – external and internal, intentional and accidental. Whatever the root cause, detection and early warning are critical to containing risk and potential damage.
SOLUTION
A Comprehensive Approach to Detecting Cyber Risks and Threats
The Nozomi Networks solution takes a multi-pronged approach to identifying suspicious, unauthorized activity.
It uses behavior-based anomaly detection and multiple types of signature and rules-based detection to identify unauthorized activity such as:
- remote access
- log file deletions
- configuration changes
- downloads
- controller logic changes
- edits to PLC projects and more
The solution correlates detection results with operational context to generate specific, actionable alerts about potential credential theft. For example, it checks baselines for network peculiarities such as VPN access and IP ranges assigned to vendors. If a vendor activity falls outside those ranges, it alerts your security and operations staff.
The Asset Intelligence and Threat Intelligence subscriptions continuously update Guardian sensors so you can quickly detect and respond to cyber threats and anomalies.
