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vulnerability

vul-ner-uh-BIL-uh-tee /ˌvʌlnərəˈbɪləti/

nounC1GRETOEFLIELTS

formaltechnical

The state of being exposed to the possibility of being attacked or harmed, either physically or emotionally. In cybersecurity, a weakness in a system that can be exploited by an attacker.

A cybersecurity vulnerability is a flaw or weakness in a system's design, implementation, operation, or management that could be exploited to violate the system's security policy.

The story behind the word. The word 'vulnerability' comes from the Latin word 'vulnus,' meaning 'wound.' Think of a warrior with an exposed 'vulnus' – a wound that makes them susceptible to further harm. In the digital world, a 'vulnerability' is precisely that: a 'wound' or weak spot in a system's armor, leaving it open to attack. It's a powerful image for a critical concept in security.

Word relationships

weakness: A general term for a fault or defect.
flaw: An imperfection or defect, often in design.
exposure: The state of being open to harm or risk.

resilience: The ability to recover from or resist harm.
strength: The quality of being strong and robust.
invulnerability: The state of being impossible to harm.

Commonly confused with

threat: A 'threat' is a potential danger (e.g., a hacker group). A 'vulnerability' is a weakness in a system that a threat could exploit.

Word family

vulnerable (adjective): Exposed to the possibility of being attacked or harmed.
vulnerably (adverb): In a vulnerable manner.

Collocations

security vulnerability
exploit a vulnerability
patch a vulnerability
system vulnerability
identify vulnerabilities

Example sentences

"The newly discovered software vulnerability allowed hackers to gain remote access to devices." A software security report.
"Sharing your feelings can be a sign of strength, not a vulnerability." Discussing personal weaknesses.
"Regular security audits help identify and patch potential vulnerabilities before they can be exploited." Analyzing a network's security.

Memory hook

A 'VULNERABILITY' is like a 'WOUND' that makes you 'VULNERABLE' to attack. Wound Weakness

When not to use

Do not use 'vulnerability' to describe a general problem or challenge. It specifically refers to a weakness that can be exploited to cause harm.

Fun facts

The term 'zero-day vulnerability' refers to a software flaw that is unknown to the vendor and has no patch available, making it particularly dangerous.
Many bug bounty programs offer rewards to ethical hackers who discover and report vulnerabilities.