Social engineering is a cybersecurity attack technique that manipulates people into revealing sensitive information, granting access to systems, or performing actions that compromise security. Rather than exploiting software vulnerabilities, social engineering attacks exploit human psychology, including trust, fear, authority, urgency, curiosity, and helpfulness.
Attackers use social engineering to convince victims to disclose passwords, transfer money, download malware, connect unauthorized devices, or provide access to restricted systems. Because these attacks target human behavior rather than technology, they can bypass even sophisticated security controls.
As organizations strengthen technical defenses, cybercriminals increasingly rely on social engineering to achieve their objectives.
What Are Social Engineering Attacks?
Social engineering attacks are the methods cybercriminals use to manipulate people into revealing sensitive information, granting access to systems, or performing actions that compromise security.
These attacks can take many forms, including phishing emails, fake technical support calls, text messages, social media impersonation, and even physical interactions. Some attackers also use rogue hardware, such as malicious USB devices, to exploit trust and gain access to corporate environments.
Whether carried out digitally or physically, the objective is the same: convince the victim to take an action that benefits the attacker.
How Social Engineering Works
Most social engineering attacks follow a similar pattern:
- The attacker gathers information about the target.
- A believable scenario is created.
- The attacker establishes trust or urgency.
- The victim is persuaded to take action.
- The attacker exploits the access gained.
For example, an employee may receive an email that appears to come from their IT department requesting a password reset. Believing the request is legitimate, the employee enters their credentials into a fake login page, unknowingly providing the attacker with access to corporate systems.
Why Social Engineering Attacks Are So Effective
Social engineering attacks succeed because they prey on predictable human responses. People tend to trust familiar-looking devices, obey perceived authority figures, respond hastily to urgent-sounding requests, or act out of fear, curiosity, or a desire to be helpful.
For example, an employee might click on a seemingly innocent link in a well-crafted phishing email or plug in a USB drive labeled “Payroll Q2” they found in the parking lot. These actions, driven by curiosity or urgency, are precisely what attackers count on.
Common Types of Social Engineering Attacks
Social engineering attacks come in many forms, but all share a common objective: manipulating people into taking actions that benefit the attacker. Understanding the different types of social engineering attacks can help organizations identify threats before they result in a security breach.
- Phishing: Phishing attacks use fraudulent emails, websites, or messages to trick victims into revealing credentials, financial information, or other sensitive data.
- Spear Phishing: Spear phishing is a targeted form of phishing that uses personal information to make messages appear more legitimate and convincing.
- Vishing: Voice phishing, or vishing, involves attackers using phone calls to impersonate trusted organizations, colleagues, or technical support personnel.
- Smishing: Smishing attacks are conducted through SMS or messaging applications and often contain malicious links designed to steal information or install malware.
- Pretexting: Pretexting occurs when an attacker creates a believable scenario to gain trust and obtain confidential information. Common examples include impersonating IT support, financial institutions, or vendors.
- Baiting: Baiting exploits curiosity or temptation. Attackers may leave malicious USB devices in public locations, provide free downloads, or distribute compromised hardware in the hope that victims will interact with them.
- Tailgating: Tailgating is a physical social engineering technique in which an unauthorized individual gains access to a restricted area by following an authorized employee.
Examples of Social Engineering Attacks
Real-world social engineering attacks can occur through email, phone calls, text messages, social media, or physical devices.
Common examples include:
- A phishing email requesting a password reset.
- A fake invoice sent to a finance employee.
- A caller impersonating the IT department.
- A malicious USB drive left in a parking lot.
- A visitor posing as a contractor to gain facility access.
These examples demonstrate that social engineering attacks target human behavior rather than technical vulnerabilities.
Why Employees Are the Primary Targets of Social Engineering Attacks
Despite investments in cybersecurity, employees continue to represent the most exploited entry point for attackers. Most training programs focus on phishing alone, but social engineering attacks have evolved far beyond email scams. Today, cybercriminals also use hardware-based social engineering tactics to infiltrate networks, often without employees realizing they’ve been manipulated. One increasingly common technique involves the use of rogue devices that appear harmless but are designed to provide attackers with unauthorized access to systems.
The Role of Rogue Devices in Social Engineering Attacks
One of the most deceptive forms of social engineering is the use of rogue devices, hardware attack tools designed to appear legitimate. These devices often mimic everyday office items like USB chargers, keyboards, or mice. They are specifically designed to evade suspicion, providing cybercriminals with a discreet way to launch attacks and gain unauthorized access.
For example, a Ninja Cable (a USB cable used for “juice jacking”) may look like an innocent charger, but it is capable of stealing data and injecting malware. Similarly, a Raspberry Pi embedded inside a keyboard could give attackers access to systems with minimal risk of detection. When devices that seem benign are actually hidden attack tools, the threat becomes far more dangerous.
How Social Engineering Enables Hardware-Based Attacks
Social engineering attacks often provide the necessary access for deploying rogue devices. Attackers may impersonate delivery personnel, cleaners, or even employees to infiltrate a workplace. These tactics exploit social norms, few employees challenge a person in a uniform or someone who “just forgot their badge.”
Once inside, the attacker can discreetly plug in a malicious device. Because traditional security solutions lack visibility at the physical layer, these hardware-based social engineering attacks often go undetected until it’s too late.
These examples demonstrate how hardware-based social engineering attacks can bypass traditional security awareness efforts by exploiting trust in seemingly legitimate devices.
Exploiting Remote Access Through Social Engineering
The attack surface has widened significantly with the rise of Bring Your Own Device (BYOD) and remote work. Today, social engineering attacks no longer require physical presence. Cybercriminals manipulate users into connecting rogue devices at home, devices that may have been purchased unknowingly from online marketplaces like Amazon or AliExpress.
Even public charging kiosks have become attack vectors. This tactic, known as “juice jacking,” involves loading malware onto devices when they are plugged in to charge. Some attackers have gone as far as distributing free USB drives or chargers disguised as promotional gifts, knowing that the temptation of a giveaway is often enough to override caution.
In one case, an attacker mailed a $50 Best Buy gift card along with a USB drive to a hospitality company. Fortunately, the recipient grew suspicious, either through training or intuition, and avoided a potentially devastating breach.
How to Prevent Hardware-Based Attacks
Traditional security solutions, such as Network Access Control (NAC), Endpoint Protection Systems (EPS), and Intrusion Detection Systems (IDS), often fail to detect Rogue Devices because they lack Layer one visibility, the ability to identify physical devices on a network. This lack of visibility makes it essential to have a security solution that can detect, identify, and block Rogue Devices before they can infiltrate your network.
While training and awareness are important tools for preventing social engineering attacks, they are not foolproof. Employee negligence remains a significant factor in 62% of cyber incidents. Therefore, organizations need a comprehensive solution to complement human awareness.
The Solution: Sepio’s ARM Platform
To mitigate the risks associated with hardware-based social engineering attacks, Sepio’s Asset Risk Management (ARM) platform provides real-time visibility into your network’s physical layer. This allows your organization to detect and block Rogue Devices before they can cause harm.
With Layer 1 visibility and advanced detection capabilities, Sepio’s platform ensures that even the most covert hardware attacks are caught early, allowing organizations to defend against threats that traditional cybersecurity solutions miss.
See How Sepio Prevents Hardware-Based Attacks
Social engineering attacks don’t stop at phishing, they now include covert hardware-based threats that bypass traditional security tools. Sepio’s Asset Risk Management platform provides unmatched Layer 1 visibility to detect and block rogue devices before they infiltrate your network.
Schedule a demo today to see how Sepio protects your organization against hardware-based social engineering attacks.
