Understanding Social Engineering
Introduced| English | Meaning |
|---|---|
| person/ˈpɜːsn/ | person |
| social engineering/ˈsəʊʃl ˌendʒɪˈnɪərɪŋ/ | Manipulating people into revealing information or taking actions that undermine security. |
| adversary/ˈædvəsəri/ | A person, group or other actor pursuing actions opposed to a system owner's security interests. |
| elicitation/ɪˌlɪsɪˈteɪʃn/ | Drawing information from someone through conversation or questioning, sometimes without making the purpose apparent. |
| intimidation/ɪnˌtɪmɪˈdeɪʃn/ | intimidation |
| urgency/ˈɜːdʒənsi/ | urgency |
| impersonate/ɪmˈpɜːsəneɪt/ | To present oneself as another person or trusted entity in order to influence how others respond. |
| one-time password/wʌn taɪm ˈpæswɜːd/ | one-time password |
| malware/ˈmælweə/ | Software designed to damage, disrupt, exploit or gain unauthorised access to computer systems. |
Fooling the human, not the code
- The weakest part of a system is often the person using it.
- Social engineering 社会工程学 tricks people into breaking security.
- The attacker — the adversary 对手 — fools a person instead of hacking the machine.
How it reaches you
- Most attacks come by email, text, or social media.
- The goal is elicitation 套取信息 — getting secrets out of you.
- It can also happen in person or over the phone.

Social engineering: pressure tactics push the victim to act before thinking
Which social-engineering tactic is it?
Intimidation threatens harm; urgency invents a deadline; consensus claims everyone else acted; authority borrows power.
What is the main goal of social engineering?
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Social engineering targets the human, not the code.
"Reply in the next 10 minutes or lose access" mainly uses which tactic?
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A tight deadline creates urgency.
Which are common social-engineering pressure tactics? (Choose all)
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Encryption is a defense, not a pressure tactic.
Two powerful feelings
- Intimidation 恐吓 threatens a bad result so fear makes you obey.
- Urgency 紧迫感 invents a deadline so you act without thinking.
- Other tactics: authority, consensus, scarcity, familiarity.
When a message makes you feel rushed or scared, slow down. That feeling is exactly the pressure an adversary wants — stop and check before you click or reply.
Giving an adversary your pet's name and birthday could help them impersonate you.
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That info often answers security challenge questions.
Secret software that steals data after you click a bad link is called ____.
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Malware = malicious software.
Match each tactic to its trick.
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Each tactic exploits a different human instinct.
What the victim loses
- They may reveal personal info used to impersonate 冒充 them.
- They may hand over a one-time password (OTP) 一次性密码.
- They may download malware 恶意软件 that steals data.
An email says: "Your account will be locked in 1 hour — click here to verify." That single sentence uses urgency (1 hour) and intimidation (locked). Both push you to click before thinking.
Social engineering attacks the human with psychological pressure — mainly intimidation and urgency — to make a victim reveal secrets, hand over a password, or run malware. The defense is to slow down and verify.