# US 2021/0334386 A1 · Method and system for assessing effectiveness of cybersecurity controls in an ot environment

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- Number: US 2021/0334386 A1
- Document ID: US20210334386A1
- Status: Published application
- Kind: A1
- Application number: 16/859,632
- Filed: 2020-04-27
- Published: 2021-10-28
- Earliest claimed: 2020-04-27
- Assignees: Saudi Arabian Oil Company
- Applicants: Saudi Arabian Oil Company
- Inventors: Khalid Suliman AlGhamdi; Muhanad Abdulhamid Shahat
- Web page: https://patentgrep.com/patent/US20210334386A1

## CPC

- G06F 21/55: Detecting local intrusion or implementing counter-measures
- G06F 21/577: {Assessing vulnerabilities and evaluating computer system security}
- G06F 9/542: {Event management; Broadcasting; Multicasting; Notifications}
- G06F 21/554: {involving event detection and direct action}
- G06N 5/04: Inference or reasoning models
- G06Q 10/0635: Risk analysis of enterprise or organisation activities
- H04L 63/1433: {Vulnerability analysis}
- G06F 2221/034: Test or assess a computer or a system
- G06N 20/00: Machine learning
- G06Q 50/06: Energy or water supply
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A cybersecurity solution for monitoring and assessing an overall cybersecurity posture level of an operation technology environment to increase the level when it is determined to be below a setpoint value for the operation technology environment. The solution includes, among other things, receiving metrics data for a corresponding one of each of a plurality of cybersecurity posture indices for the operation technology environment, determining a cybersecurity posture index value for each of the plurality of cybersecurity posture indices based on the metrics data, applying a weight to each of the plurality cybersecurity posture index values to calculate a respective weighted cybersecurity posture index value, and determining an overall cybersecurity posture level of the operation technology environment based on a sum of each weighted cybersecurity posture index value.

## Claims

### Claim 1

A method for monitoring and assessing an overall cybersecurity posture level of an operation technology environment to increase said level when the level is determined to be below a setpoint value for the operation technology environment, the method comprising:
receiving metrics data for a corresponding one of each of a plurality of cybersecurity posture indices (CPIi) for the operation technology environment;
determining a cybersecurity posture index (CPIi) value for each of the plurality of cybersecurity posture indices (CPIi) based on the metrics data;
applying a weight to each of the plurality cybersecurity posture index (CPIi) values to calculate a respective weighted cybersecurity posture index (wCPIi) value;
determining an overall cybersecurity posture level of the operation technology environment based on a sum of each weighted cybersecurity posture index (wCPIi) value;
generating a notification message, including image rendering data and commands; and
sending the notification message to a computer resource asset to render an image of a snapshot cybersecurity posture level for at least one of the plurality of cybersecurity posture indices (CPIi).

### Claim 2 (depends on 1)

The method in claim 1, further comprising:
effectuating remediation based on the overall cybersecurity posture level of the operation technology environment.

### Claim 3 (depends on 1)

The method in claim 1, further comprising:
effectuating remediation based on the snapshot cybersecurity posture level.

### Claim 4 (depends on 1)

The method in claim 1, wherein the snapshot cybersecurity posture level includes a near-real-time (NRT) snapshot cybersecurity posture level.

### Claim 5 (depends on 1)

The method in claim 1, wherein the overall cybersecurity posture level of the operation technology environment includes a near-real-time (NRT) snapshot overall cybersecurity posture level.

### Claim 6 (depends on 1)

The method in claim 1, wherein said snapshot cybersecurity posture level comprises a near-real-time (NRT) snapshot cybersecurity posture level for at least one of:
a number of users authorized access to the operation technology environment;
a network security level for the operation technology environment;
a number cyber awareness sessions performed on the operation technology environment;
a number of cyber drills performed on the operation technology environment;
a number of cybersecurity incidents in the operation technology environment;
a patch compliance ratio for computer resource assets in the operation technology environment;
a backup availability ratio for computer resource assets in the operation technology environment; and
an endpoint security compliance ratio for computer resource assets in the operation technology environment.

### Claim 7 (depends on 3)

The method in claim 3, wherein effectuating remediation comprises fixing a vulnerability on a computer resource asset in the operation technology environment.

### Claim 8 (depends on 3)

The method in claim 3, wherein effectuating remediation comprises guiding, on said computer resource asset, mitigation of a vulnerability on a different computer resource asset in the operation technology environment.

### Claim 9

A non-transitory computer readable storage medium having stored thereon instructions for monitoring and assessing an overall cybersecurity posture level of an operation technology environment that, when executed by a computing device, cause the computing device to perform operations comprising:
receiving metrics data for a corresponding one of each of a plurality of cybersecurity posture indices (CPIi) for the operation technology environment;
determining a cybersecurity posture index (CPIi) value for each of the plurality of cybersecurity posture indices (CPIi) based on the metrics data;
applying a weight to each of the plurality cybersecurity posture index (CPIi) values to calculate a respective weighted cybersecurity posture index (wCPIi) value;
determining an overall cybersecurity posture level of the operation technology environment based on a sum of each weighted cybersecurity posture index (wCPIi) value;
generating a notification message, including image rendering data and commands; and
sending the notification message to a computer resource asset to render an image of a snapshot cybersecurity posture level for at least one of the plurality of cybersecurity posture indices (CPIi).

### Claim 10 (depends on 9)

The non-transitory computer readable storage medium in claim 9, wherein the instructions, when executed by the computing device, cause the computing device to perform a further operation comprising:
effectuating remediation based on the overall cybersecurity posture level of the operation technology environment.

### Claim 11 (depends on 9)

The non-transitory computer readable storage medium in claim 9, wherein the instructions, when executed by the computing device, cause the computing device to perform a further operation comprising:
effectuating remediation based on the snapshot cybersecurity posture level.

### Claim 12 (depends on 9)

The non-transitory computer readable storage medium in claim 9, wherein the snapshot cybersecurity posture level includes a near-real-time (NRT) snapshot cybersecurity posture level.

### Claim 13 (depends on 9)

The non-transitory computer readable storage medium in claim 9, wherein the overall cybersecurity posture level of the operation technology environment includes a near-real-time (NRT) snapshot overall cybersecurity posture level.

### Claim 14 (depends on 9)

The non-transitory computer readable storage medium in claim 9, wherein said snapshot cybersecurity posture level comprises a near-real-time (NRT) snapshot cybersecurity posture level for at least one of:
a number of users authorized access to the operation technology environment;
a network security level for the operation technology environment;
a number cyber awareness sessions performed on the operation technology environment;
a number of cyber drills performed on the operation technology environment;
a number of cybersecurity incidents in the operation technology environment;
a patch compliance ratio for computer resource assets in the operation technology environment;
a backup availability ratio for computer resource assets in the operation technology environment; and
an endpoint security compliance ratio for computer resource assets in the operation technology environment.

### Claim 15 (depends on 11)

The non-transitory computer readable storage medium in claim 11, wherein effectuating remediation comprises fixing a vulnerability on a computer resource asset in the operation technology environment.

### Claim 16 (depends on 11)

The non-transitory computer readable storage medium in claim 11, wherein effectuating remediation comprises guiding, on said computer resource asset, mitigation of a vulnerability on a different computer resource asset in the operation technology environment.

### Claim 17

A system for monitoring and assessing an overall cybersecurity posture level of an operation technology environment to increase said level when the level is determined to be below a setpoint value, the system comprising:
a cybersecurity posture assessment and remediation (CPAR) stack arranged to
receive metrics data for a corresponding one of each of a plurality of cybersecurity posture indices (CPIi) for the operation technology environment, and
determine a cybersecurity posture index (CPIi) value for each of the plurality of cybersecurity posture indices (CPIi) based on the metrics data; and
a key performance index (KPI) determiner arranged to
apply a weight to each of the plurality cybersecurity posture index (CPIi) values to calculate a respective weighted cybersecurity posture index (wCPIi) value,
determine an overall cybersecurity posture level of the operation technology environment based on a sum of each weighted cybersecurity posture index (wCPIi) value,
generate a notification message, including image rendering data and commands, and
send the notification message to a computer resource asset to render an image of a snapshot cybersecurity posture level for at least one of the plurality of cybersecurity posture indices (CPIi).

### Claim 18 (depends on 17)

The system in claim 17, wherein the cybersecurity assessment and remediation (CPAR) stack comprises at least one of:
a cybersecurity incidence level metrics (CILM) unit;
a backup Availability Ratio Metrics (BARM) unit;
a Patch Compliance Ratio Metrics (PCRM) unit;
an Endpoint Compliance Ratio Metrics (ECRM) unit;
a Network Security Level Metrics (NSLM) unit;
a Security Awareness Level Metrics (SALM) unit; and
a Drill Compliance Level Metrics (DCLM) unit.

### Claim 19 (depends on 17)

The system in claim 17, the system further comprising:
an operation technology key performance index mitigation unit arranged to effectuate remediation of a vulnerability on a computer resource asset in the operation technology environment to increase said snapshot cybersecurity posture level for the at least one of the plurality of cybersecurity posture indices (CPIi).

### Claim 20 (depends on 19)

The system in claim 19, wherein the effectuate remediation comprises guiding remediation of the vulnerability on the computer resource asset.
