This concept guide explains the verified principles behind Digital Site Instructions: keeping current assignment information accessible to authorized personnel.
The core idea
Keeping current assignment information accessible to authorized personnel. The strongest way to understand the topic is to separate what official sources actually establish from the choices a property or organization still has to make for its own operations.
Verified foundation
- Public Safety Canada describes critical infrastructure as essential systems, facilities, technologies, networks, assets and services and emphasizes resilience, partnerships and all-hazards risk management.
- Canadian Centre for Cyber Security guidance treats physical and environmental protection, access control, awareness, training, audit/accountability and monitoring as connected security-control families.
- Cyber Centre guidance recognizes that physical security controls can include access-control devices, alarms, guard procedures and monitoring or surveillance equipment.
- Official insider-threat guidance emphasizes organization-specific controls, awareness and monitoring rather than relying on a single control.
- Technology can support records, communication and visibility, but operational decisions still require accountable people, defined authority and site-specific procedures.
How the pieces connect
The useful outcome is not a promise that one control will prevent every incident. It is a more reviewable system: responsibilities are defined, relevant activity is recorded, exceptions are escalated and clients can understand what the security service actually did.
What this means in practice
For a real property or assignment, the next step is to compare this framework with the site’s current procedures, operating hours, known hazards, access arrangements, reporting expectations and escalation contacts. The goal is clarity: personnel should know what they are expected to observe, verify, communicate and record, and they should also know where their authority ends.
What this does not establish
The cited federal security-control guidance is a reference framework, not a statement that every private organization must implement every control exactly as described. No general article can determine the correct response to every incident or replace a site-specific assessment.
Operational takeaway
A dependable security program is easier to evaluate when the people, procedures and records tell the same story. Factual documentation, defined authority and current site information create a stronger basis for review than assumptions, vague expectations or unsupported guarantees.
Official sources & verification
1. How to protect your organization from insider threats — Canadian Centre for Cyber Security
2. Canada’s Critical Infrastructure — Public Safety Canada
3. National Strategy for Critical Infrastructure — Public Safety Canada
4. Physical and environmental protection — Canadian Centre for Cyber Security
Last reviewed: 2026-08-12. The cited federal security-control guidance is a reference framework, not a statement that every private organization must implement every control exactly as described. This resource provides general information and does not replace legal, emergency, privacy, fire-safety, occupational-health-and-safety or other qualified professional advice.