Healthcare organisations invest heavily in protecting their people, facilities and assets. Access control systems, CCTV networks and security personnel all play an important role. Yet many security incidents do not begin with a breach of a physical barrier. They begin with a conversation.

While social engineering is often associated with cyber security, it is fundamentally about manipulating human behaviour. Rather than overcoming a security system, the social engineer exploits trust, courtesy and urgency to gain access, information or influence. In healthcare settings, where compassion and service are central to daily operations, these techniques can be particularly effective.

Hospitals are unlike most other environments. They are designed to welcome people rather than keep them out. Every day, patients, visitors, contractors and agency staff move through healthcare facilities, many of them unfamiliar faces. In such a dynamic environment, distinguishing between those who belong and those who do not is not always straightforward.

Social engineers understand this. A person in a high-visibility jacket carrying a toolbox, or an individual confidently claiming to be responding to an urgent issue, rarely attracts immediate suspicion. More often than not, people assume legitimacy based on appearance, behaviour and perceived authority.

Healthcare staff are especially vulnerable to these tactics—not because they lack awareness, but because their priority is patient care. Faced with someone claiming that a delay could affect clinical services, many people will instinctively choose to help rather than challenge. Social engineers know that urgency can override procedure and that most people are reluctant to appear obstructive.

The methods themselves are often remarkably simple. Individuals follow staff through secure doors, enter restricted areas by blending into legitimate activity, or use confidence and familiarity to avoid scrutiny. Success frequently depends not on defeating security controls but on exploiting assumptions.

The consequences can be significant. Unauthorised access may create safeguarding concerns, enable theft, expose sensitive areas or disrupt healthcare operations. In environments containing vulnerable patients, controlled medicines and critical services, even a seemingly minor lapse can have far-reaching implications.

The lesson is clear; effective security is as much about culture as it is about technology. The strongest organisations are those where staff feel comfortable verifying identities, questioning unusual activity and reporting concerns without fear of causing offence.

Healthcare environments cannot become fortresses, nor should they. Openness and trust are essential to delivering care. The challenge is ensuring that trust is accompanied by healthy vigilance.

A simple question, an identity check or a willingness to challenge unfamiliar behaviour may feel insignificant at the time. Yet these small actions often provide the most effective defence against social engineering.

Because in healthcare, the greatest security threat is rarely the person trying to force their way in—it is the person confidently walking through the door and expecting nobody to ask why they are there.

Source

U.S. Department of Health and Human Services (HHS). (2024). Social Engineering Attacks Targeting the Health Sector https://www.hhs.gov/sites/default/files/social-engineering-targeting-the-hph-sector-tlpclear.pdf

Springer Nature. Tailgating. In: Encyclopedia of Cryptography, Security and Privacy https://link.springer.com/chapter/10.1007/978-3-662-72084-4_13

Mitnick, K. D., & Simon, W. L. (2002). The Art of Deception: Controlling the Human Element of Security https://www.wiley.com/en-

NHS Counter Fraud Authority (NHSCFA) – Counter Fraud Guidance and Publications https://www.gov.uk/government/organisations/nhs-counter-fraud-authority

TIAA’s Security Advisory Services are here to help. Our experts can guide you through the practical, ethical, and operational aspects of deploying advanced surveillance solutions, ensuring compliance, resilience, and peace of mind. Contact us today to explore tailored strategies that protect your people, assets, and reputation.

Jonathan Gladwin,  Director – Security Advisory 

Carver Tedstone, Managing Consultant Security Advisory  

To view the previous blogs in the series please visit TIAA Blogs