---
type: "term"
title: "Loss of Integrity (LoI)"
description: "A Data Risk Event outcome where an attacker successfully makes unauthorized changes to data."
resource: "tlctc:term:loss-of-integrity-loi"
tags:
  - "glossary"
---
# Loss of Integrity (LoI)

A Data Risk Event outcome where an attacker successfully makes unauthorized changes to data. From the attacker's perspective: "Data modified". This refined definition focuses on the outcome rather than the mechanism (e.g., "tampering" is a mechanism that produces the LoI outcome).

---