Cyber threats aren’t just an IT concern anymore – they are now a core operational risk for organizations relying on contractors or suppliers. As third parties gain additional access to facilities, networks, and critical systems, vendors have become one of the fastest-growing sources of cyber exposure.
And attackers know it.
Today’s cyber incidents increasingly start outside the organization, exploiting third-party weaknesses to reach internal systems and operational environments.
The Rising Cyber Risk from Contractors
The data are clear:
- $4.44M was the average cost of a breach in 2025
- 30% of breaches were caused by contractors or suppliers in 2025 (doubled from 15% in 2024)
Vendor access, shared equipment, remote connectivity, and inconsistent cyber hygiene all make contractors and suppliers an attractive target – and a challenging one for organizations to monitor without a defined process.
When a contractor is compromised, it is the hiring organization’s operations, reputation, and reporting obligations on the line.
Why Reporting Speed Matters
Regulators across multiple sectors expect rapid notification – often within hours – whether the incident happened to the company directly or through a third-party supporting its operations. The challenge? Most organizations don’t have a consistent way for contractors and suppliers to communicate incidents – creating delays when response time matters most.
Across energy, utilities, transportation, manufacturing, and critical infrastructure, the direction is the same: Third-party incidents fall under the same scrutiny as internal ones.
Examples of reporting timelines:
- CISA (CIRCIA):72 hours
- Ransom payment:24 hours
- SEC:4 business days
Regulatory Impact Across Industries:
Regulatory Body
Impacted Industries
Critical infrastructure sectors
Publicly traded companies, financial services
Aerospace & Defense, Transportation, Midstream, LNG
Energy Upstream, Midstream, Refining
Utilities, Distribution, & Power Generation
Utilities, Distribution, & Power Generation
A Growing Communication Gap
Even well-managed contractor programs often lack clarity on one question, “If something goes wrong, will the contractor or supplier notify us?”
Without clear expectations, organizations face:
- Delayed escalation
- Increased operational disruption
- Incomplete information
- Slower regulatory reporting
This gap is now a top concern for Procurement, HSE, IT, and Operations teams trying to manage risk across complex supply chains.
Where ISN Helps
ISN Cyber Secure™ gives hiring organizations a structured, consistent way to:
- Increase visibility into contractor cybersecurity practices
- Strengthen expectations around cyber hygiene
- Improve communication if an incident occurs
- Support better alignment between contractors and operational needs
And because every company’s risk profile is different, ISN helps organizations scale their approach based on industry, regulatory environment, and operational footprint. It is providing a clear line-of-sight into third-party risk and faster communication when it matters.
Take Action Today
Third-party cyber risk is increasing, regulations are evolving, and contractor and supplier exposure is becoming harder to ignore.
Watch ISN’s latest explainer video to see how organizations can leverage ISNetworld to help confidently address cyber risk across their contractor and supplier workforces.