Cloud Security Health Score Calculator
Roll seven cloud security pillar scores into one weighted health score, penalise open critical findings and name the weakest pillar.
Inputs
Cloud Security Health Score
58.7/ 100
Grade
D — Weak
Weighted Pillar Average
67.7/ 100
Critical Finding Penalty
9.0points
Weakest Pillar
Supply chain — signing, provenance and dependency control
Spread Between Best and Worst Pillar
25points
Score If the Weakest Pillar Reached 85
61.7/ 100
Points to Target
21.4points
Verdict
The pillars are badly unbalanced; an attacker uses the weakest one, not the average
Step by step
Values used
Identity and access pillar score = 62 / 100; Data protection pillar score = 74 / 100; Network security pillar score = 68 / 100; Detection and response pillar score = 71 / 100; Compliance pillar score = 80 / 100; Container and Kubernetes pillar score = 58 / 100; Supply chain pillar score = 55 / 100; Open critical findings across all pillars = 18 findings; Target health score = 80 / 100
Cloud Security Health Score
Health score = identity × 0.20 + data × 0.15 + network × 0.15 + detection × 0.15 + compliance × 0.15 + container × 0.10 + supply chain × 0.10 − critical finding penalty.
Marginal investment
Uplift if the weakest pillar reached 85 = health score + (85 − weakest pillar score) × that pillar's weight — the best single investment available.
Cloud Security Health Score
= 58.7 / 100
Grade
= D — Weak
Weighted Pillar Average
= 67.7 / 100
Critical Finding Penalty
= 9.0 points
Weakest Pillar
= Supply chain — signing, provenance and dependency control
Spread Between Best and Worst Pillar
= 25 points
How it works
The pillar weights follow blast radius: identity is the cloud control plane so it carries 20%, while container and supply chain carry 10% each because their failures are usually contained to a workload. Open critical findings are subtracted rather than averaged in, capped at 15 points, so a good-looking set of pillar scores cannot hide a live backlog of urgent work. Executives need one number and engineers need to know where to spend the next sprint, and a weighted roll-up with an explicit weakest-pillar uplift answers both questions from the same inputs.
Formulas
Cloud Security Health Score
Health score = identity × 0.20 + data × 0.15 + network × 0.15 + detection × 0.15 + compliance × 0.15 + container × 0.10 + supply chain × 0.10 − critical finding penalty.
- weightedBase
- Weighted average of the seven pillar scores
- criticalPenalty
- min(15, 0.5 × open critical findings)
- healthScore
- 0–100 health score after the penalty
Marginal investment
Uplift if the weakest pillar reached 85 = health score + (85 − weakest pillar score) × that pillar's weight — the best single investment available.
- minPillar
- Lowest pillar score
- weakestWeight
- Weight carried by the weakest pillar
- upliftIfWeakestFixed
- Health score after lifting that one pillar to 85
Frequently Asked Questions
How is Cloud Security Health Score calculated?
Health score = identity × 0.20 + data × 0.15 + network × 0.15 + detection × 0.15 + compliance × 0.15 + container × 0.10 + supply chain × 0.10 − critical finding penalty. The pillar weights follow blast radius: identity is the cloud control plane so it carries 20%, while container and supply chain carry 10% each because their failures are usually contained to a workload. Open critical findings are subtracted rather than averaged in, capped at 15 points, so a good-looking set of pillar scores cannot hide a live backlog of urgent work.
Why does Cloud Security Health Score matter?
Executives need one number and engineers need to know where to spend the next sprint, and a weighted roll-up with an explicit weakest-pillar uplift answers both questions from the same inputs.
What values do I need to enter?
This calculator takes 9 inputs: Identity and access pillar score, Data protection pillar score, Network security pillar score, Detection and response pillar score, Compliance pillar score, Container and Kubernetes pillar score, Supply chain pillar score, Open critical findings across all pillars, Target health score. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.
Should the pillar weights be the same for every organisation?
No. These are sensible defaults for a typical cloud estate; a company whose product is a Kubernetes platform should weight containers far higher, and a regulated data business should weight data protection and compliance up. Set the weights once, write down why, and keep them stable so the trend stays meaningful.
Why does the average hide risk?
Because attackers do not average. A 78 built from seven pillars near 78 is a genuinely decent posture; the same 78 built from a 95 and a 45 means there is one route in that nobody has closed. That is why pillar spread and the weakest pillar are shown next to the headline number.
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