What does vulnerability mean?
Vulnerability is the condition of being exposed to harm, attack, criticism, difficulty, or exploitation. It can refer to a general weakness, a specific flaw in a system, a medical risk, or the emotional openness involved in revealing one's feelings. The word often carries a serious or cautionary tone in technical and professional contexts: identifying a vulnerability can be an essential step in preventing harm. In personal and therapeutic settings, however, vulnerability is also associated with courage, honesty, and trust, since people may become vulnerable when they share difficult experiences or feelings. The word is related to the idea of being “woundable,” and it is useful because it describes not merely weakness but a condition in which exposure to harm or understanding becomes possible. In discussions of security, health, relationships, and public policy, vulnerability identifies both the people or systems at risk and the points where protection is needed.
nounThe state of being exposed to harm, attack, or serious difficulty; a weakness that can be exploited or overcome. In emotional and therapeutic contexts, it can also mean openness about one's feelings and experiences.
- The state of being exposed to harm, danger, attack, or adverse circumstances.
- A weakness, flaw, or point of susceptibility that could be exploited.
- Openness or susceptibility to emotional harm, criticism, or disappointment.
- In medicine and public health, a specific weakness or factor that increases the risk of disease or injury.
- In computing and security, a weakness or exposure that could allow a system, network, or organization to be compromised.
"The team worked to reduce the system's vulnerability to cyberattacks while acknowledging that no security measure is perfect."
"Her honesty revealed a vulnerability that many people prefer to conceal."
"The report identifies a vulnerability in the authentication process that could allow unauthorized access."
The plural is used for separate weaknesses, risks, or points of exposure, as in “the report identifies several vulnerabilities in the network.” In the abstract or emotional sense, vulnerability is normally an uncountable noun.
"The audit revealed several vulnerabilities that the engineering team immediately addressed."
Vulnerability literally means being “woundable”: its Latin roots describe the condition of being open to injury, which is why the word can describe both physical danger and emotional openness.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does vulnerability come from?
The word comes through late Latin from Latin vulnerabilitas, meaning “the state of being woundable or susceptible to injury.” Latin vulnerabilis, the source of vulnerable, was derived from vulnerare, “to wound.” English later developed vulnerability in both practical senses, such as exposure to danger, and more recent emotional and therapeutic senses.
How vulnerability is actually used
The word is standard in formal, technical, professional, and therapeutic registers. It can sound serious or medical in security, medicine, and risk-management contexts, while in personal or therapeutic contexts it often refers to emotional openness and trust.
Easily confused with vulnerability
Vulnerability is the noun meaning a state of exposure or weakness, whereas vulnerable is the adjective describing someone or something that is exposed to harm.