What Offers Protection Against Social Engineering?

Whether we are talking about the Internet of Things, the Smart Factory, or Big Data, all of these topics revolve around increased connectivity, maximum efficiency, and the acquisition of valuable data. At the same time, they create new security requirements. Like every major societal development, digital transformation brings its own risks and threats. Among the most common are various social engineering methods, which can cause massive damage. With the right protection against social engineering, however, you can significantly reduce this risk on the path to a secure system landscape.

What Is Social Engineering?

The term social engineering refers to the targeted manipulation of people in order to gain access to system landscapes, internal processes, and confidential information. Attackers gather information about employees and then exploit their human nature against them. The technique is essentially a confidence trick brought up to date with modern technology. Such attempts are nothing new: con artists existed long before digitalization and Industry 4.0, even long before computers and laptops. However, because the method remains highly effective, it continues to be widely used. NIST provides useful background on social engineering.

The Art of Manipulation

You have probably heard stories about emails with seemingly harmless attachments or inconspicuous links that led to a rude awakening. The recipient was careless and opened the attachment or clicked the link. Social engineering methods, however, go a step further: to gain access to a computer network, social engineers may pose as employees, customers, or IT technicians. They attempt to win the trust of an authorized user and extract confidential information. Fraudsters often build a relationship of trust over an extended period. Little by little, they elicit insider information about the software landscape and network security without arousing suspicion. For example, attackers may contact an employee, mention an allegedly urgent problem, and request network access to resolve it. The primary target of social engineering is clearly the human element. Firewalls and other security mechanisms can certainly be circumvented, but human traits such as vanity, deference to authority, or embarrassment can be exploited with comparatively little effort. Employees with frequent customer contact and new hires who do not yet know all their colleagues and typically need help setting up IT systems are especially popular targets. The major advantage for attackers is that the breach often goes entirely unnoticed, allowing them to exploit the same person again at the next opportunity.

Protection Against Social Engineering

Unlike defenses against other forms of attack on corporate data and systems, protection against social engineering cannot be achieved through technical IT measures alone. People are both the potential gateway and the key vulnerability. Organizations should therefore make employees aware of the value of information, alert them to the threat, and provide targeted training. What concrete steps can you take?

• Social engineers deliberately exploit impulsive human reactions. Under deadline pressure and stress, many employees act without thinking. Always take a moment to pause and reflect. Be wary of suspicious or unexpected calls, even if they appear to come from a trusted person.
• Never share confidential information through anonymous channels such as email, chat, or telephone. Despite all the possibilities of digital communication, exchanging information face to face remains the most secure option. An added benefit is that it helps you build stronger relationships with your colleagues.
• If you are unsure about a request and the caller tries to pressure you, escalate the matter to your supervisor. Intimidation tactics are a core element of the social engineering playbook.

Attackers consistently find ways to extract information from employees through social engineering. Naivety or hasty decisions can undermine even the best security systems and lead to the theft of valuable data. Yet with a little common sense and deliberate awareness, effective protection is well within reach. For further guidance, see the paper "Avoiding Social Engineering and Phishing Attacks".