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Social engineering refers to the manipulation of individuals or groups to deceive, influence, or exploit them for unauthorized access to sensitive information, financial gain, or other malicious purposes. It is a psychological technique often used by cybercriminals, hackers, and fraudsters to exploit human behaviour and gain access to confidential data, systems, or resources.
'''Social engineering''' is manipulation used to make a person reveal information, perform an action, grant access, send money, install software or trust an attacker. In cyber security, it is often used with phishing, impersonation, credential theft and fraud.
== Techniques of Social Engineering ==
Social engineering techniques leverage psychological manipulation and human interactions to achieve their goals. Some common techniques include:
The technique works because people are part of every security system. Attackers exploit trust, pressure, routine, fear, curiosity, authority or helpfulness rather than relying only on technical vulnerabilities.
== Common Techniques ==
=== Phishing ===
=== Phishing ===
Phishing involves sending deceptive emails, messages, or websites that appear legitimate to trick individuals into revealing sensitive information such as passwords, credit card details, or personal data.
Phishing uses deceptive emails, text messages, websites or calls to trick a target into clicking a link, opening an attachment, entering credentials or approving a payment.
=== Pretexting ===
=== Pretexting ===
Pretexting involves creating a fabricated scenario or pretext to manipulate individuals into divulging information or performing actions they wouldn't otherwise do.
=== Baiting ===
Baiting involves enticing individuals with something appealing, such as a free download or an offer, to make them take a certain action that exposes them to risk.
Pretexting uses a false story. An attacker might pretend to be from IT support, a delivery company, a bank, a supplier, a recruiter, a manager or a public authority.
=== Impersonation ===
=== Impersonation ===
Impersonation involves pretending to be someone else, such as a trusted colleague, to gain access to confidential information or resources.
Impersonation involves pretending to be a trusted person or organisation. It can happen by email, phone, social media, messaging apps or in person.
=== Baiting ===
Baiting offers something tempting, such as a free download, leaked file, fake invoice, voucher, game cheat or abandoned USB drive.
=== Tailgating ===
=== Tailgating ===
Tailgating, also known as piggybacking, involves physically following someone into a secure area or facility without authorization.
Tailgating, also called piggybacking, is physical access by following an authorised person into a controlled area.
=== Quizzes and Surveys ===
Cybercriminals may use quizzes or surveys as a pretext to collect personal information that can later be used for malicious purposes.
=== Business Email Compromise ===
Business email compromise targets payment processes. Attackers may impersonate executives, suppliers or solicitors to redirect invoices or push urgent transfers.
== Impact and Consequences ==
Social engineering attacks can have serious consequences, including:
== Why It Works ==
Social engineering often succeeds because the request feels normal at the time. Attackers may use:
* Data Breaches: Attackers can gain unauthorized access to sensitive data, including personal, financial, and corporate information.
* Financial Loss: Victims may suffer financial loss through unauthorized transactions, fraud, or identity theft.
* Unauthorized Access: Cybercriminals can gain access to computer systems, networks, and accounts.
* Reputation Damage: Organizations and individuals may suffer reputational damage due to data breaches or other malicious activities.
* Urgency, such as a deadline or threat of account closure.
* Authority, such as a manager or official body.
* Familiar branding or copied email signatures.
* Public information from social media and company websites.
* A small first request that builds trust before a larger one.
* Pressure to keep the request secret.
== Prevention and Mitigation ==
To protect against social engineering attacks, individuals and organizations can take various measures:
== Prevention ==
Useful defences include:
* Education and Awareness: Regular training and awareness programs can help individuals recognize and resist social engineering techniques.
* Verification: Always verify the identity of individuals requesting sensitive information or access.
* Strong Authentication: Use strong, unique passwords and enable multi-factor authentication for accounts and systems.
* Secure Communication: Verify email senders, avoid clicking on suspicious links, and verify website URLs before entering sensitive information.
* Privacy Settings: Set appropriate privacy settings on social media platforms and limit the information shared online.
* Multi-factor authentication, preferably phishing-resistant where possible.
* Clear payment verification processes.
* Staff training that encourages reporting rather than blame.
* Call-back procedures using trusted contact details.
* Limits on public information that helps attackers build convincing stories.
* Email filtering, domain protection and suspicious-link reporting.
* Separation of duties for high-risk actions.
Training works best when it reflects real workflows. People are more likely to report mistakes quickly if they believe the organisation wants early warning rather than punishment.
== Practical Examples ==
=== Fake IT Support ===
An attacker phones an employee and claims to be from IT. They ask the employee to approve a login prompt or install a remote support tool. The technical attack depends on the social trick.
=== Supplier Bank Change ===
A finance team receives an email claiming that a supplier has changed bank details. A safe process would verify the change through a known phone number or contact route, not through the details supplied in the email.
=== Door Access ===
An attacker carrying boxes waits near a secure door and asks an employee to hold it open. The request feels polite, but it bypasses the access control system.
== See Also ==
* [[Malware]]
* [[Phishing]]
* [[Scammer.info]]
* [[Cybersecurity]]
== References ==
* [https://www.npsa.gov.uk/resources/protective-security-guidance-social-engineering NPSA: Protective security guidance on social engineering]
* [https://www.ncsc.gov.uk/guidance/phishing NCSC: Phishing attacks, defending your organisation]
* [https://ico.org.uk/about-the-ico/research-reports-impact-and-evaluation/research-and-reports/learning-from-the-mistakes-of-others-a-retrospective-review/phishing/ ICO: Phishing]
* [https://www.cisa.gov/sites/default/files/2025-03/Phishing%20Guidance%20-%20Stopping%20the%20Attack%20Cycle%20at%20Phase%20One%20508.pdf CISA: Phishing guidance]
[[Category:Cybersecurity]]
[[Category:Fraud]]