Learn English – Synonym for “Blind Spot”

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I'm looking for a term or an idiom to point to the weakness of something, specifically a computer program. Something similar to "Achilles Heel" but not that! I just found blind spot : "an area in which one fails to exercise judgment or discrimination", however it seems it is not appropriate for the context.

Best Answer

Since you're asking for a computing term, I suggest "vulnerability". From a security point of view, this is the main concern.

Vulnerability — Wikipedia

In computer security, a vulnerability is a weakness which allows an attacker to reduce a system's information assurance. Vulnerability is the intersection of three elements: a system susceptibility or flaw, attacker access to the flaw, and attacker capability to exploit the flaw.

To exploit a vulnerability, an attacker must have at least one applicable tool or technique that can connect to a system weakness. In this frame, vulnerability is also known as the attack surface.

Or software bug — Wikipedia

A software bug is an error, flaw, failure or fault in a computer program or system that causes it to produce an incorrect or unexpected result, or to behave in unintended ways.

Most bugs arise from mistakes and errors made by people in either a program's source code or its design, or in frameworks and operating systems used by such programs, and a few are caused by compilers producing incorrect code.

A program that contains a large number of bugs, and/or bugs that seriously interfere with its functionality, is said to be buggy or defective. Reports detailing bugs in a program are commonly known as bug reports, defect reports, fault reports, problem reports, trouble reports, change requests and so forth.

Or glitch — Wikipedia, if it's a short-term issue.

A glitch is a short-lived fault in a system. It is often used to describe a transient fault that corrects itself, and is therefore difficult to troubleshoot. The term is particularly common in the computing and electronics industries, and in circuit bending, as well as among players of video games, although it is applied to all types of systems including human organizations and nature.

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