The risk isn’t just about physical access. Social engineering can start remotely – a phone call to ‘verify’ a visitor’s appointment, or a phishing email to obtain credentials used for access. Once inside, even without a specific target, a malicious actor can wander, observe, and map the facility, identifying weaknesses for later exploitation. Traditional visitor logs and basic sign-in sheets simply aren’t enough to mitigate these threats.
Here are some practical steps data centres can take to strengthen visitor screening and reduce the risk of social engineering:
- Verify, Verify, Verify: Always independently verify a visitor’s identity and appointment. Don’t rely solely on what they say. Contact the host directly using a known number, not one provided by the visitor.
- Implement a robust visitor management system: This should include pre-registration, ID scanning, background checks (where appropriate and legally compliant), and a clear audit trail.
- Train staff to recognise social engineering tactics: Educate employees about common scams, red flags (like overly friendly or inquisitive visitors), and the importance of challenging unusual requests.
- Control access points and visitor flow: Limit visitor access to only the areas absolutely necessary for their appointment. Escort visitors at all times, or implement strict access control measures.
Prioritising visitor screening isn’t just about preventing physical breaches; it’s about protecting the integrity of the data and systems within. A comprehensive approach, combining technology, training, and diligent procedures, is essential. We recommend conducting regular security audits, including simulated social engineering exercises, to identify and address vulnerabilities in your visitor management processes. If you’re unsure where to start, a risk assessment focused on visitor access is a valuable first step.
