Enhancing Safety in Smart Homes: The Role of OT Cybersecurity

Internet-connected devices and appliances in smart homes offer increased convenience, efficiency, and security. Nevertheless, heightened connectivity also creates opportunities for cyberattacks targeting operational technology (OT), which includes physical devices and environments linked with information technology.

As recent statistics highlight, OT cyber threats in critical infrastructure and industrial settings have exponentially increased since 2020, underscoring the urgent need for robust preventive strategies tailored to home environments.

The Rising Threat of Cyberattacks on Connected Home Devices

Cyberattacks increased by a staggering 125% globally in 2021 compared to 2020, with major growth in ransomware and other threats targeting OT systems. As smart home adoption expands, so does the attack surface available to cyber criminals seeking financial gain or causing disruption. 

With some predictions estimating that there will be over 500 million smart homes globally by 2030, it is imperative for consumers and manufacturers to prioritize cybersecurity in internet-connected appliances and devices.

Challenges in Securing Connected Home Environments

As global cyber threats rapidly evolve, addressing the multifaceted complexities in enhancing home OT cybersecurity continues to be a challenge. A survey revealed that nearly 90% of CISOs encountered at least one major cybersecurity incident in 2022 alone – an alarming figure indicating severe gaps in defense systems. 

Efforts to comprehensively secure connected home environments are often hindered by technical barriers in updating legacy devices, coordination issues between IT and OT teams, and budget constraints.

Core Principles for Smart Home Cyber Protection

Protecting internet-enabled appliances and devices involves strategies tailored to address OT-specific risks like malware infections, unauthorized access, and software vulnerabilities. The core principles of smart home cybersecurity center around:

  • Access Controls: Multi-layered authentication and authorization mechanisms to prevent lateral movement across devices once a breach occurs.
  • Asset Management: Real-time inventory monitoring and risk-based classification of connected devices.
  • Standardization: Establishing configuration baselines and hardening device security settings consistently.
  • Anomaly Detection: Monitoring network behavior and device logs to quickly identify malicious activities.
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The Rising Costs of Connected Home Cyber Incidents

While strengthening technological safeguards remains a priority, a look at recent cyber incidents underscores the tangible impacts of inadequate security. The widely publicized attack on the shipping giant in 2017 caused over $300 million in business disruption and equipment repairs, exemplifying the physical and financial damages inadequate OT security can lead to. 

As our homes fill up with connected appliances controlling critical functions, the risks posed by potential cyberattacks grow exponentially.

Addressing the Unique Nature of Home OT Systems

Unlike traditional information technology (IT) environments focused heavily on data security, OT cyber protection emphasizes continued – and safe – operations alongside threat prevention. Connected home devices tend to stay in usage longer compared to office or industrial technology, leading to added risks from unpatched vulnerabilities in legacy systems. 

With some appliances relying on remote access for vendor maintenance, ensuring the security of these third-party connections is also imperative. Cybersecurity ownership in connected home environments also requires improved coordination between teams responsible for devices and networks/servers to balance priorities holistically.

A Proactive Approach to Smart Home Cybersecurity

With rapidly evolving threats, reactive measures may no longer suffice. Instead, a proactive approach combining technological safeguards, secure processes, and risk-aware capabilities is key according to experts. Critical success factors include:

  • Standardizing device setup and ensuring encryption across all connectivity protocols
  • Incentivizing smart home device vendors to integrate cybersecurity-by-design
  • Enabling real-time anomaly detection through device behavior analytics
  • Clarifying ownership between endpoint and network security teams
  • Promoting a risk-aware culture emphasizing cyber safety
  • Planning upgrades proactively for legacy appliances/devices
  • Vetting third-party vendors thoroughly prior to granting remote access
  • Implementing cyber awareness programs for consumers
  • Assessing device risks and network vulnerabilities periodically

What’s evident is a pressing need for consumers, manufacturers, and managed service providers to weigh in the unique considerations for securing connected home environments in their approach.

Collaborative Protection for Smart Home Infrastructure

With multiple touchpoints in the smart home ecosystem, enhancing OT security warrants a collaborative approach between:

  • Consumers: Adopting basic security hygiene around device usage, access controls, and vigilance against risks
  • Manufacturers: Integrating cyber protections into product design and providing ongoing firmware/software updates
  • Service Providers: Ensuring endpoint and network-level defenses by coordinating vulnerability management and anomaly detection across managed environments
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Furthermore, connected device vendors and service providers responsible for the tech stack supporting smart homes need to optimize processes to balance operational efficiency with security. 

Strategies like implementing secure-by-default configurations, mandating strict remote access controls, and detecting anomalies through machine learning have proven highly effective.

Promoting a Culture of Cyber Awareness

In the end, improving smart home OT security depends on promoting vigilance and risk awareness throughout the entire ecosystem, from consumers and product designers to third-party technicians. Through educational awareness programs, financial incentives, clarified liability for cyber incidents, and integrated cyber protections rather than bolt-on measures, promoting security by design across the smart home ecosystem is key.

Starting Points for Securing Connected Home Infrastructure

While an array of solutions for smart home cyber protection exists, prioritizing the next steps can be challenging. A helpful approach is:

1. Audit OT Assets: Maintain an inventory of connected devices, criticality classification, firmware/software versions, etc. to identify red flags.

2. Assess Cyber Exposure: Periodically undertake vulnerability assessment and penetration testing to probe network/device weaknesses.

3. Instill Cyber Hygiene: Educate consumers and service vendors on risks, implement security configurations by default, and ensure third-party access vetting.

Key Takeaways

With the increasing adoption of connected appliances, devices, and smart assistance technologies at home, cyber threats are an inevitability without adequate safeguards. By instilling core principles that focus on asset discovery, access controls, risk awareness, and collaborative protection across the smart home ecosystem, homeowners, manufacturers, and service providers can enhance safety despite increased connectivity.

This article explored crucial pain points, specialized security strategies, and the next steps that can help secure the smart homes of the future.


As smart home adoption grows exponentially, so do the cyber risks facing consumers and device manufacturers alike. By taking a proactive and collaborative approach focused on assessing vulnerabilities, instilling cyber hygiene, and educating users, connected home safety can stay on pace with the convenience new technologies offer. 

As cyber threats are only expected to intensify, ensuring the enhancement of OT security must remain an uncompromisable priority throughout the ecosystem.


What are common entry points for cyberattacks on connected home devices?

Unsecured legacy systems, devices dependent on unvetted third-party access for functionality or repairs, and lack of visibility into network vulnerabilities are often cybercriminal entry points.

How do you balance productivity and user experience with smart home cyber protections?

Implementing layered safeguards like anomaly detection, asset monitoring, and encryption while also educating consumers can help balance both objectives.

Why is installing security updates consistently so important?

Timely installation of firmware and software security patches plugs known attack vectors before adversaries can weaponize them in assaults.