Most organisations have visible security measures in place. CCTV, access control, alarms and security personnel are all familiar parts of protecting people, property and operations.
But some of the most important vulnerabilities aren’t necessarily the most obvious.
They can exist in everyday processes: the parcel arriving at reception, the contractor entering through a service entrance, the bag that isn’t screened, or equipment that hasn’t kept pace with changing demands.
The question for security teams isn’t only “What are we protecting?”
It’s also “What are we missing?”
Here are seven security gaps worth considering.
- The Delivery Entrance Nobody Thinks About
Every day, organisations receive letters, parcels, equipment and supplies. In busy environments, these deliveries can number in the hundreds or even thousands.
Yet while considerable attention may be given to controlling who enters a building, less attention can sometimes be given to what enters it.
Mailrooms, loading bays and reception areas therefore deserve the same consideration as other points of entry.
X-ray screening can provide greater visibility into incoming items, from letters and small parcels through to larger packages and bags, without relying solely on manual inspection.
The gap: Your front entrance may be secure, but are your deliveries receiving the same scrutiny?
- Screening People but Not What They’re Carrying
Metal detection and X-ray screening perform different roles.
Walk-through and handheld metal detectors can support the screening of people, while X-ray systems allow operators to inspect bags, parcels and other carried items.
Using one without considering the other can leave part of the picture unseen.
An effective screening strategy should therefore consider the person and the items moving with them.
The gap: You know who’s entering — but do you know what’s entering with them?
- The Familiar-Face Problem
Contractors, suppliers and regular visitors quickly become familiar to staff.
That’s operationally convenient, but familiarity can sometimes lead to security processes becoming less consistent.
Contractors may arrive with tools and equipment. Suppliers bring goods onto site. Regular visitors may access areas repeatedly.
Effective security doesn’t mean treating everyone as a threat. It means applying appropriate procedures consistently, regardless of how familiar someone has become.
The gap: Have routine relationships gradually become exceptions to your security procedures?
- Security Equipment That No Longer Matches the Job
Security requirements rarely stay static.
An organisation that screened 50 parcels a day several years ago might now process several hundred. A site may have expanded, visitor numbers may have increased, or entirely new operational areas may have opened.
The equipment may still work perfectly — but that doesn’t necessarily mean it’s still right for the job.
Increasing queues, slower screening and pressure on operators can all indicate that the original setup needs reviewing.
The gap: Is your screening capability designed for the organisation you operate today — or the organisation you were five years ago?
- The Operator Knowledge Gap
Even sophisticated screening technology depends on the people using it.
Operators need to understand the equipment, recognise potential threats and know what action to take when something requires further investigation.
Technology can increasingly assist this process. Developments in imaging, automation and AI-assisted detection can help operators work efficiently and consistently.
But technology should support human judgement rather than replace it.
Regular training and clearly defined procedures remain essential parts of an effective screening operation.
The gap: When was the last time your operators’ knowledge was tested as thoroughly as your equipment?
- Security That Gets in the Way
There’s another risk that can be surprisingly easy to overlook: security measures that are so inconvenient that people begin finding ways around them.
If screening consistently creates queues, delays deliveries or interrupts critical operations, pressure builds to bypass the process.
That’s particularly important in environments such as critical infrastructure, healthcare and other operations where continuity matters.
Effective security should be proportionate to the risk while fitting into the organisation’s normal workflow.
The aim isn’t simply to introduce more security. It’s to introduce security that people can use effectively.
The gap: Are your security procedures protecting operations — or unintentionally encouraging people to avoid them?
- The “We’ve Got Security Covered” Mindset
Perhaps the biggest gap isn’t a particular entrance, machine or procedure.
It’s assuming that because security measures are already in place, the job is finished.
Threats evolve. Organisations change. Supply chains become more complex. Technology develops. New buildings, processes and working patterns create new points of vulnerability.
Security therefore needs to be reviewed rather than simply installed.
A periodic assessment of people, processes and technology can reveal gaps that weren’t there when the original security strategy was created.
The gap: When did you last look at your security from the perspective of what might have changed?
So, What Are You Missing?
Good security isn’t necessarily about creating more checkpoints or making an organisation feel more restricted.
It’s about understanding where vulnerabilities exist and applying the right measures in the right places.
That might mean reviewing how parcels enter a building. It could mean combining X-ray screening with metal detection, improving operator training or replacing equipment that no longer meets operational demands.
Often, the first step is simply asking the right question:
What are you missing?
Detect & Protect
Todd Research provides X-ray screening and metal detection solutions for mailrooms, government facilities, critical infrastructure, commercial buildings, prisons, courts and other high-security environments.
From compact mail and parcel screening to conveyor X-ray and personnel screening solutions, we help organisations identify potential gaps and develop screening approaches suited to their operational requirements.
Could there be something you’re missing? Talk to Todd Research about reviewing your current screening requirements.