noun
vulnerability; weakness; fragility
General noun for the state of being easily damaged, attacked, or hurt. Used for physical objects, systems, organizations, and people.
このシステムの脆弱性が指摘された。
The vulnerability of this system was pointed out.
高齢者の脆弱性
Policies that consider the vulnerability of the elderly are necessary.
noun
Computing term for a flaw or weakness in software, hardware, or a network that can be exploited.
その脆弱性を修正するパッチがリリースされた。
A patch to fix that vulnerability was released.
弱点 means 'weak point' or 'weakness' in a more concrete sense, often a specific flaw. 脆弱性 is broader and more abstract, often used in technical or systemic contexts.
Compound of 脆弱 (ぜいじゃく, 'fragile, vulnerable') + 性 (せい, '-ity, -ness'), forming an abstract noun meaning 'vulnerability'.