Score tamper risk for equipment and materials. Adjust weights, log site notes, and validate inputs. Download CSV or PDF, share results with teams fast.
This calculator separates Likelihood and Impact. Likelihood uses a weighted vulnerability score: security ratings are inverted (5 − rating), while exposure, remoteness, and incident history increase likelihood directly.
Asset rating is derived from value brackets: 0 (none) up to 5 (very high). Adjust custom weights to match your project risk model.
Tampering can disable equipment, contaminate materials, and trigger costly rework. In construction environments, open access windows, rotating crews, and shifting storage locations create repeated opportunities for interference. A consistent score helps teams compare sites, prioritize inspections, and justify security spend with simple, consistent inputs.
This calculator converts observations into a 0–100 score using two components: likelihood and impact. Likelihood reflects exposure created by weak access control, poor perimeter barriers, lighting gaps, surveillance limits, and insecure storage. It also accounts for public traffic, remote settings, and incident history. Impact reflects the business effect if tampering occurs. The score blends 60% likelihood and 40% impact, then maps results into bands from Low to Critical.
Likelihood answers, “How easy is it to tamper here?” Higher security ratings reduce likelihood because the model inverts control strength. Impact answers, “How bad would it be?” Asset value is mapped into a 0–5 bracket, then combined with operational criticality and safety or compliance consequences. Together, they guide whether to focus on deterrence, detection, or resilience. When likelihood is high but impact is moderate, prioritize quick hardening; when impact is high, add redundancy and tighter custody controls.
Default weights reflect common site priorities, but projects differ. Enable custom weights when the risk profile is atypical, such as high‑value tools, regulated materials, or frequent public interface. Keep benchmarks by recording scores after improvements, seasonal changes, or layout shifts. Stable scoring supports reporting for management and insurers and helps compare vendor proposals against targeted score reductions.
Use the “Top Drivers” list to pick the fastest reductions. If lighting and surveillance dominate, adjust placement, add overlap, and verify retention. If access and perimeter dominate, tighten gate procedures, issue keys formally, and seal storage cages. Recalculate after each change and export CSV or PDF for audit trails. Attach brief notes on what changed, when, and who verified it today.
It summarizes expected tamper exposure on a 0–100 scale. The score combines a likelihood component and an impact component, then labels the result as Low, Moderate, High, or Critical.
Control inputs are inverted into vulnerabilities. A higher rating means fewer gaps, so its contribution to likelihood drops. This mirrors how access checks, barriers, lighting, cameras, and secure storage deter tampering.
The blend is fixed in this file for consistency. If you need a different balance, adjust custom weights to shift likelihood drivers or impact drivers, then compare results across sites using the same approach.
Start with defaults, then increase weights for factors that drive losses on your projects. Use incident reviews, site audits, and stakeholder input. Keep weights stable for a reporting period so trends remain comparable.
No. It is a structured, relative indicator for prioritization and benchmarking. Use it to rank sites and track improvements, not to estimate exact event frequency.
Exports include all inputs, derived likelihood, impact, overall score, and the risk band. The PDF also lists the top drivers to support briefings, audits, and handovers.
| Scenario | Controls (avg) | Exposure | Asset Value | Criticality | Overall Score | Band |
|---|---|---|---|---|---|---|
| Urban site with cameras and fenced storage | 4.0 | 1 | USD 15,000 | 3 | 28.6 | Moderate |
| Remote site with weak lighting and open perimeter | 2.0 | 4 | USD 60,000 | 4 | 78.2 | Critical |
| Busy commercial remodel with strong access control | 3.5 | 3 | USD 25,000 | 4 | 52.4 | High |
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.