Understanding and Preventing Social Engineering Attacks
Today’s conversations around cybersecurity often focus on advanced defenses: next-generation firewalls, intrusion detection systems, and endpoint protection platforms. These tools are critical, but attackers have learned that breaking through technology is often harder than breaking through people. This is why social engineering has remained a persistent threat and will likely continue to do so for decades.
Rather than exploiting code, social engineering exploits human nature. It manipulates psychology, trust, and everyday behaviors to bypass even the most sophisticated security controls. A single convincing email, a well-timed phone call, or a casual request at a secure doorway can achieve what malware or brute force never could: direct access to sensitive data and systems.
No matter how advanced your tools are, your organization’s resilience depends just as much on human awareness as it does on technical safeguards.
Table of Contents
What is Social Engineering?
At its core, social engineering is the practice of manipulating people into taking actions that compromise security. Unlike technical exploits that target software vulnerabilities, social engineering exploits human psychology, using persuasion, urgency, or fabricated trust to bypass safeguards. It’s a highly effective tactic that is used to some degree in nearly every cyberattack.
Over 70% of data breaches start with phishing or social engineering attacks.
- According to Proofpoint
These attacks often begin with research. Adversaries may gather details from social media, company websites, or leaked databases to craft convincing pretexts. With just enough information, they can pose as a trusted colleague, a service provider, or even an executive. Once trust is established, the attacker’s request, whether for credentials, financial transfers, or access to restricted areas, can seem routine and legitimate.
What makes social engineering particularly dangerous is its adaptability. While tools and malware evolve over time, human behavior remains relatively constant. Attackers know that people want to be helpful, follow authority, and avoid conflict, traits that, when exploited, can lead to devastating breaches.
Common Types of Social Engineering Attacks
Social engineering takes many forms, each designed to exploit human behavior in different ways. These attacks span everything from digital deception to in-person manipulation. Below are some of the most common forms organizations face.
Phishing
The most widespread form of social engineering, phishing typically arrives as an email or message that appears to come from a legitimate source, such as a bank, government agency, or well-known brand. These messages often create urgency (“your account will be locked if you don’t act now”) and direct victims to malicious links or attachments that harvest credentials, install malware, or steal financial information.
- Example: In May 2017, a large-scale “Google Docs” phishing worm spread by impersonating document-sharing requests and tricking users into granting a malicious app access to their Google accounts.
Spear Phishing
Unlike general phishing, spear phishing is carefully targeted. Attackers research their victims in advance, often using LinkedIn, company websites, or data breaches to gather details that make the message more convincing. A spear phishing email might reference a current project, a recent business trip, or even the name of a colleague, making it far harder to detect as fraudulent.
- Example: In 2021, the Russian-linked Gamaredon group sent spear-phishing emails with malicious macros to Ukrainian agencies, posing as trusted contacts to deliver malware and track activity.
Vishing
Voice phishing, or vishing, uses phone calls or voicemail messages to trick victims. Attackers may impersonate banks, government officials, or company executives, pressuring targets to reveal credentials or transfer funds under false pretenses.
- Example: In July 2020, attackers used coordinated vishing calls to trick Twitter employees into granting access to internal tools, leading to the takeover of high-profile accounts.
Smishing
A variant of phishing carried out over SMS or text messaging. Smishing attacks often use urgent alerts about deliveries, account issues, or prizes to lure victims into clicking on malicious links or providing sensitive information.
- Example: In recent years, the IRS and consumer protection agencies have repeatedly warned about smishing scams impersonating the IRS or stimulus programs; text messages that attempt to harvest personal or financial data have been widely reported.
Business Email Compromise (BEC)
Business email compromise (BEC) attacks involve impersonating executives or trusted business partners via email, often to request wire transfers or sensitive documents. These attacks are highly convincing because they typically exploit real business relationships and use domain spoofing or account takeovers.
- Example: In 2016, Austrian aerospace supplier FACC lost roughly $47 million after attackers impersonated the CEO in an email instructing finance staff to transfer funds.
Pretexting
Pretexting is a tactic that relies on a fabricated backstory to gain trust. For example, an attacker might pose as IT support needing login credentials to “fix” an account, or as HR requesting sensitive employee details for “compliance purposes.” Because the pretext feels logical within the victim’s role or responsibilities, targets are more likely to comply without verifying authenticity.
- Example: In 2024, attackers used AI deepfake audio/video to impersonate executives in a pretexting scheme that reportedly cost UK engineering firm Arup about £20 million.
Baiting
Baiting plays on curiosity or temptation. A classic example is a USB drive labeled “Confidential” left in a parking lot, waiting for someone to plug it into a corporate computer. Online, baiting often appears as free software, media downloads, or fake promotions that actually deliver malware or ransomware once accessed.
- Example: In 2010, the Stuxnet worm spread through infected USB drives in a baiting attack that ultimately targeted Iran’s nuclear program, sabotaging centrifuges at the Natanz facility.
Tailgating / Piggybacking
Tailgating and piggybacking are common tactics used to exploit physical security. An attacker might follow an employee through a secure door, carrying props like boxes or posing as a delivery driver to avoid suspicion. In some cases, they may directly ask someone to “hold the door,” bypassing badge access controls and entering restricted areas.
- Example: In August 2024, a man boarded two separate flights at Munich Airport by tailgating ticketed passengers through security, a clear example of how piggybacking can bypass physical access controls.
Quid Pro Quo
Quid pro quo is a strategy that involves offering something in exchange for information. A common example is an attacker posing as a helpdesk or service provider, promising quick technical support in return for login details. Unlike phishing, quid pro quo attacks rely on the victim believing they are receiving a benefit by complying.
- Example: In recent years, the Scattered Spider threat group has impersonated IT helpdesk staff in quid pro quo scams, offering “support” to employees and persuading them to install remote-access tools that opened the door to major breaches.
While these tactics differ in delivery, they share a common thread: they rely on human trust and error to succeed. Recognizing their patterns helps organizations train employees to spot red flags and stop attacks before they escalate.
Why Social Engineering Works
Despite advances in cybersecurity technology, social engineering remains one of the most effective attack methods. The reason is simple: it targets human nature rather than systems. By exploiting predictable behaviors and emotional triggers, attackers can often bypass even the strongest technical safeguards.
- Trust in Authority – People are inclined to follow instructions from someone who appears to be a superior, an expert, or a legitimate organization.
- Urgency and Pressure – Deadlines, emergencies, or threats of negative consequences push individuals to act quickly without verifying details.
- Desire to Help – Many employees naturally want to be cooperative and responsive, especially if they believe someone needs immediate assistance.
- Curiosity and Temptation – Suspicious links, free offers, or “found” devices play on human curiosity, often leading to reckless clicks or downloads.
- Information Overload – In busy environments filled with emails, messages, and notifications, it becomes easy to overlook warning signs.
Ultimately, attackers succeed because they exploit consistent psychological patterns. Defending against social engineering isn’t just about technology; it’s about training people to pause, question, and verify before they act.
How to Prevent Social Engineering Attacks
Social engineering succeeds by targeting human behavior, not just technology. That’s why prevention requires more than firewalls and filters; it calls for a balanced approach. Organizations need to equip employees with awareness, reinforce them with technical safeguards, and protect them with strong physical security.
Together, these three layers form a defense that makes it much harder for attackers to succeed.
Attackers rely on exploiting human trust, so awareness and culture are the first line of defense. Consistent training helps employees spot red flags before they turn into incidents.
Regular Security Awareness Training
Teach employees to recognize phishing attempts, suspicious requests, and unusual behaviors through ongoing security awareness training.
Simulated Attacks
Run controlled phishing or social engineering simulations to measure readiness and reinforce lessons with real-world examples.
Clear Reporting Channels
Make it easy and stigma-free for employees to report suspicious activity so incidents can be contained early.
Culture of Healthy Skepticism
Reinforce that questioning unexpected requests, even from senior staff or “trusted” vendors, is not only acceptable but expected.
Technology can limit the damage if attackers trick someone into revealing information or credentials. Strong safeguards make it much harder for social engineering to escalate into a full compromise.
Strong Access Controls
Enforce least-privilege access and multi-factor authentication so stolen credentials alone aren’t enough for attackers to succeed.
Verification Procedures
Encourage staff to verify requests, especially those involving sensitive data, financial transfers, or access changes, through independent channels.
Not all social engineering happens online. Preventing unauthorized physical access (which is responsible for 9% of breaches according to IBM) is just as critical, since a single breach of a secure area can undermine technical and procedural defenses.
Preventing Tailgating and Piggybacking
Ensure badge access systems, visitor escorts, and employee vigilance prevent attackers from bypassing physical controls by following others into secure areas.
Device and Media Controls
Discourage plugging in unknown USB devices and enforce endpoint protection to reduce the risk of baiting attacks spreading malware.
Social engineering works by finding the one weak spot in the chain, an untrained employee, a missing safeguard, or an open door. The way to stop it is by strengthening all three. Training builds awareness so employees recognize manipulative tactics, technical controls ensure a single mistake doesn’t lead to compromise, and physical security closes off easy paths of entry.
When these defenses work together, organizations turn the tables on attackers and make human behavior an asset rather than a liability.
Strengthening Security Where It Matters Most
Social engineering proves that the human element remains the most critical factor in cybersecurity. Attackers know it’s often easier to trick a person than to break through a firewall, which is why tactics like phishing, pretexting, and baiting continue to be so effective.
That’s why our social engineering assessments not only reveal weaknesses but also give you a clear path to strengthening employee awareness and resilience. With tactics ranging from phishing and vishing to complex physical testing, we show you exactly how your team would respond, and where you can improve.
If you want to know how your team would stand up against these attacks, a social engineering assessment is the best place to start.
FAQs About Social Engineering
What is the main goal of a social engineering attack?
The goal of social engineering is to manipulate people into giving away sensitive information, granting access, or performing actions that compromise security. Unlike malware or technical exploits, these attacks target human behavior rather than systems.
How common are social engineering attacks?
Very common. According to Proofpoint, over 70% of data breaches start with phishing or social engineering attacks. While IBM’s 2025 Data Breach Report found that phishing is the most common initial attack vector.
Who is most at risk from social engineering?
Everyone in an organization is a potential target, from executives and finance teams to entry-level staff and contractors. Attackers often start with lower-level employees to gain a foothold, but high-level executives are frequently targeted through spear phishing and business email compromise (BEC).
How often should organizations run social engineering training or assessments?
Best practice is to train staff at least annually and run simulated attacks several times per year. Continuous assessments are most effective at reinforcing vigilance and identifying where further training is needed.
Can technology alone stop social engineering attacks?
No. While security tools can filter phishing emails or block malicious sites, technology cannot stop all forms of manipulation. Preventing social engineering requires a combination of technical defenses, employee awareness, regular training, physical security, and well-defined verification procedures.


