One grade, nine threats.
Life safety and expected annual loss on one scale, with the attack modes that drive the grade named and quantified.
PNH Security Engineering · Crowded-Place Security
Grade the risk. See what drives it. Fix what matters first.
CORDON grades a crowded place or facility from AAA to D for security risk from nine attack modes, from vehicle ramming and vehicle bombs to active assailants, drones and chemical release. Enter the address and the facility type: CORDON suggests the threat tier and site context, solves the vehicle approaches, and ranks the measures that move the grade most for the money, with a documented report.
Screening estimate
BBB at 55.2 for a downtown hotel. Vehicle bomb and vehicle ramming carry 59% of life-safety risk (31% and 28%). Seven ranked measures within the budget lift it to A at 61.3 for about $473k a year; the first, a right-sized M30 line on the main approach, costs about $22k a year.
Worked example (synthetic, no real site) · downtown business hotel · 1,200 peak occupants · regional tier T2 · two vehicle approaches · $500k annual budget
Nine attack modes. Two measures of risk. One scale.
For every mode, CORDON multiplies how often an attack is attempted, the chance it succeeds against the protection in place, and what it would cost in lives and dollars. It adds the modes into a life-safety index and an expected annual loss, grades both on one logarithmic scale, and lets the lower grade govern. Every input carries its source and every model parameter its basis, so the grade can be checked line by line.
Governs in the example
Life safety
Fatality-equivalents per year
BBB 55.2
Expected fatalities plus 0.1 times injuries, all nine modes
Financial
Expected annual loss / revenue
AAA 81.0
Property, interruption, liability and crisis costs, by policy line
Confidence
Grade holds in this share of draws
BBB in 70%
Judgment parameters varied 400 times; 90% score range 47 to 63
The modes: vehicle ramming · vehicle-borne IED · person-borne or placed IED · active assailant with a firearm · active assailant with an edged weapon · arson · weaponized drone · chemical, biological or radiological release · civil unrest. Every mode is evaluated for every facility; the assessor may tailor a mode only with a written reason, and the report prints it.
- Address in, context out: coordinates, country, threat tier, setting, nearby high-profile sites and police response are suggested from the address, then confirmed by the assessor.
- 38 facility types in 10 sectors, from hotels, arenas and malls to K-12 schools, hospitals, houses of worship, transit and street events, each with its own template.
- Vehicle approaches solved with VECTOR-S: the speed at the line, the chance a rated barrier is breached, and the rating that would stop the vehicle.
- UK Martyn's Law tier and procedure checklist, and facility-specific guidance from CISA, FEMA, NPSA and others listed for every facility type.
Attack modes
9
evaluated for every facility
Facility types
38
in 10 sectors, each with a template
Grade scale
AAA to D
8 grades on one logarithmic scale
Workflow
6 steps
from the address to a documented report
- Firearm rates calibrated to FBI data
- VECTOR-S vehicle speeds
- Martyn's Law mapper
- Every parameter labeled by basis
Attack likelihoods are partly calibrated to data; the remaining parameters are PNH engineering judgment and are labeled as such in every report.
What CORDON does
Simple to start.
An address and a facility type are enough to begin. Templates fill the rest, every value stays editable, and on-screen help explains each input.
Measures ranked by value.
Each measure is costed and ranked by benefit for the money, with the grade after every step and the threat level at which it pays for itself.
A report in minutes.
A cover-to-legal report with figures, every input and its source, the basis of every parameter, and a one-page grade card for the client.
What CORDON computes
01
Threat likelihood
Attempts per year for each attack mode, from the regional threat tier, the facility type, the target context and size, and recorded incidents near the site, with firearm rates calibrated to FBI active shooter data.
02
Vulnerability
The chance each attempt succeeds against the protection in place: vehicle speeds and barrier breach on every approach, blast standoff, screening, lockdown, response time, sprinklers, air intakes and drone defense.
03
Consequence and grade
Casualties and dollars for every scenario, the loss at return periods, the CORDON grade with its confidence, the recommended package of measures, and a documented report or reviewed issue.
Plans and billing
A screening opens the conversation; the reviewed report is where the work is. Prices in US dollars. CORDON screenings and reports are security risk consulting, not engineering services.
Free screening. By invitation from PNH or on request: a confidential one-page grade card and screening report from public data only, released to a verified work address after you accept the screening terms. No questionnaire, no measures package, no delivery date; no payment, no obligation.
Request a free screeningScreening
$2,500
Adds what the free screening leaves out: your questionnaire, the ranked measures and delivery in 5 business days.
- Full screening report and grade card in 5 business days
- All nine attack modes, two measures of risk, one grade
- Recommended package of measures
- PNH confirms the facility class before starting
Fee credited against a Reviewed Report bought within 90 days.
Buy screening, $2,500Reviewed Report
From $5,000
A screening plus a named PNH review. The only CORDON document PNH signs.
- Client interview, site photos or a site visit
- Measures costed and ranked for your budget
- Priced by facility size, $5,000 to $25,000
- Measures ranked by benefit for the money, ready for your budget decision
Your Screening fee is credited within 90 days.
Request a quoteCORDON Pro
$3,000 per user per year
The CORDON application for consultants, integrators and in-house security teams.
- Unlimited screenings across unlimited sites
- Grade cards and full reports, issued under your name
- Bulk import of facilities
- PNH review of any report available as an add-on, quoted
Billed annually. Cancel any time; reports already issued stay yours.
Request accessPortfolio
$150 per site per year
For owners and operators who grade many sites at once.
- Every site graded on one scale, refreshed yearly
- Portfolio ranking and a measures budget by site
- Minimum $15,000 per year (100 sites)
- Reviewed Reports for the sites that need them, quoted separately
One invoice per year, for procurement.
Request a quoteThe UK Martyn's Law package for enhanced-tier premises is quoted in pounds sterling. A screening is labeled as a screening everywhere; only a Reviewed Report carries a PNH review statement. Where a reviewed report leads to design work, that work is a separate engagement through an entity that may render professional engineering services, under a licensed engineer in responsible charge. Purchases are subject to the CORDON Terms of Use.
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