OT cybersecurity expenditure has increased significantly in recent years reaching an estimated $8.4B in 2023. The United States is the largest market and will remain so over the forecast period.
Increased cybersecurity investment is strongly correlated with the ongoing digital transformation of manufacturing industries and the increasing attack surface. The growing number of cyber incidents impacting industrial operations, current geopolitics, and the large number of vulnerabilities, has encouraged asset owners to invest in asset protection and monitoring. Trends are expected to strengthen to 2031 leading to additional cybersecurity investment though the rate of increase is likely to lag behind digital transformation and the number of cyber incidents.
The largest area of expenditure is on accelerating OT cybersecurity programs in critical industries and large multinational businesses. Growing data processing at the edge, and use of cloud services, will continue to demand the attention of the CISO. In the longer-term OT and IIoT will slowly become indistinguishable as security leaders focus on resilience of operations irrespective of on-prem, edge or cloud operations.
However, beyond critical industries and large multinationals, a significant challenge remains regarding the cybersecurity maturity of the large base of SME/Bs which comprise a large percentage of the global industrial base. Increasingly these organisations will be required to comply with regulations and local laws whilst having neither the resources or talent required to manage OT cybersecurity programs.
The largest area of expenditure remains network protection and segmentation. This has resulted in significant growth for NGFW vendors and corresponding investments in new products developed for OT environments. Expenditure on OT network threat detection and vulnerability management has grown rapidly over the period from 2016-2023 but is now beginning to mature. Vendors are shifting to a platform approach, offering customers solutions to multiple use-cases. Managed Security Services is a high growth requirement and addresses the customer need for Level 2 and 3 SOC analysts.
By 2031 leading manufacturers will be asset focussed, automated, and built on zero trust principles. This will become standardised in greenfield plants whilst brownfield operations will slowly migrate towards these models as OT cybersecurity concepts mature, budgets become available, and maintenance windows allow upgrades.
Industrial OT Cybersecurity Definitions
The Purdue Model, developed in the 1980's, is still widely used as a standardised approach to organising and segmenting industrial network systems to improve security, reliability and manageability and is used throughout the analysis to describe OT cybersecurity use cases.
Level 0 – Physical Process. Physical data acquisition and process control, such as temperature sensors, pressure gauges, and control valves.
Level 1 – Controller LAN. Includes the hardware and software directly responsible for the control of the processes (PLCs and RTUs). This is principally the real-time control and monitoring of physical processes, execution of control logic, and data acquisition from Level 0 devices.
Level 2 – Local HMI LAN. Supervisory control and data acquisition systems that oversee and coordinate Level 1 devices, real-time monitoring, data logging, and basic alarming functions. This is where operators interact with the system to manage and supervise processes.
Level 3 – Control Centre or Operations Management which includes Manufacturing Execution Systems (MES), batch-control and production scheduling, ensuring that production processes align with enterprise goals.
Level 3.5 – Plant DMZ is an additional layer that was not part of the original model and is used to describe the security controls between the IT (Enterprise) and OT levels. Typical components includes firewalls and enforce security policy between IT and OT and to monitor and control incoming traffic, IDS/IPS, proxy servers that act as an intermediary for requests from clients seeking resources from other servers, data diodes to only allow traffic out, and remote access servers
The cybersecurity threat to OT, beyond user error, is primarily from unauthorised access to systems due to poorly managed credentials, malware passing through the DMZ or inserted via USB ports. The risk to the business is the sum or several factors – the threat, the vulnerabilities, and the criticality of the asset.
Table of Contents
Executive Summary
Executive Summary (1)
Executive Summary (2)
Cybersecurity Investment Drivers
Summary of Investment Drivers
Economics Summary
Digital Transformation Summary
Regulatory Summary
Summary of Major Regulatory Developments
Attack Surface
Threats
Perceptions of Risk
Trends and economic indicators (2008-2023)
Trends and economic indicators (2024-2031)
Industrial OT Architectures and Cybersecurity Controls
Reference Architecture
Purdue Model
OT System Risk
Technical & Administrative Cybersecurity Controls
Administrative Controls
OT Cybersecurity Reference Architecture
Industrial Control System Security Controls
IIoT Cybersecurity
Summary
Trends and Market Expenditure Forecast
IIoT Security Reference Architecture
Ecosystem
OT Cybersecurity Industry Maturity
Summary
People and Process
Leadership
People & Culture Maturity
Process Maturity
Technology Maturity
Industrial OT Cybersecurity Maturity
Industry mix by Micro, Small, Medium and Large Business
Maturity by industry
Technology Lifecycle & Use Cases
Summary
Network Protection Trends
OT Network Protection
OT Network Protection Contd.
Industrial Networking
Discovery & Threat Detection Trends
Discovery & Threat Detection Solutions
Discovery & Threat Detection Solutions Contd.
Asset Vulnerability & Risk Management Trends
Asset Vulnerability & Risk Management Solutions
Endpoint Protection Trends
Endpoint Protection Solutions
Secure Remote Access Management Trends
Secure Remote Access Management Solutions
Security Operations Trends
Security Operations Solutions
Other Technology Solutions
Advanced Threat Prevention & Protection
Professional Security Services Definition
Professional Security Services Trends
Managed Security Services Definition
Managed Security Services Trends
Technology Maturity Lifecycle
Technology Market Size and Forecast
Ecosystem
Summary
Technology Vendors
Service Vendors
Market Expenditure & Outlook
North America Market Forecast by Industry Segment 2023-2031
North America Expenditure 2023 and CAGR by Industry Segment
North America Market Forecast by Country 2023-2031
APAC Market Forecast by Industry Segment 2023-2031
APAC Expenditure 2023 and CAGR by Industry Segment
APAC Market Forecast by Country 2023-2031
Europe Market Forecast by Industry Segment 2023-2031
Europe Expenditure 2023 and CAGR by Industry Segment
Europe Market Forecast by Country 2023-2031
Middle East Market Forecast by Industry Segment 2023-2031
Middle East Expenditure 2023 and CAGR by Industry Segment
Middle East Market Forecast by Country 2023-2031
Africa Market Forecast by Industry Segment 2023-2031
Africa Expenditure 2023 and CAGR by Industry Segment
Africa Market Forecast by Country 2023-2031
Latin America Market Forecast by Industry Segment 2023-2031
Latin America Expenditure 2023 and CAGR by Industry Segment
Latin America Market Forecast by Country 2023-2031
Central Asia Market Forecast by Industry Segment 2023-2031
Central Asia Expenditure 2023 and CAGR by Industry Segment
Central Asia Market Forecast by Country 2023-2031
Vertical Market Trends
Food & Beverage Trends & Market Forecasts by Region 2023-2031
Automotive Trends & Market Forecasts by Region 2023-2031
Pharmaceutical Trends & Market Forecasts by Region 2023-2031
Manufacturing Trends
Textile & Leather Market Forecasts by Region 2023-2031
Wood Product Market Forecasts by Region 2023-2031
Paper Product Market Forecasts by Region 2023-2031
Rubber & Plastics Market Forecasts by Region 2023-2031
Other Non-Metallic Market Forecasts by Region 2023-2031
Machinery Market Forecasts by Region 2023-2031
Electrical Manufacturing Market Forecasts by Region 2023-2031
Other Transport Market Forecasts by Region 2023-2031
Other Discrete Market Forecasts by Region 2023-2031
Computing & Electronics Trends & Market Forecasts by Region 2023-2031
Semiconductor Manufacturing Market Forecasts by Region 2023-2031
Rail Trends Market Forecasts by Region 2023-2031
Ports & Maritime Trends & Market Forecasts by Region 2023-2031
Air Transportation Market Forecasts by Region 2023-2031
Power Generation Trends & Market Forecasts by Region 2023-2031
Transmission & Distribution Trends & Market Forecasts by Region 2023-2031
Water Utilities Trends & Market Forecasts by Region 2023-2031
Oil & Gas Trends & Market Forecasts by Region 2023-2031
Refineries Market Forecasts by Region 2023-2031
Chemical Trends & Market Forecasts by Region 2023-2031
Mining Trends & Market Forecasts by Region 2023-2031
Basic Metals Trends & Market Forecasts by Region 2023-2031
Fabricated Metals Market Forecasts by Region 2023-2031