# Trusting External Input

> Accepting external input as well-formed and safe without validating it, exposing the system to malformed or malicious data.

Record: `lexicon:trusting-external-input`
Kind: anti-pattern
Layer: [Security Core](https://banes-lab.com/records/layer/security-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-trusting-external-input

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Trusted Internal Network Assumption](https://banes-lab.com/records/lexicon/trusted-internal-network-assumption.md) and before [Unbounded Autonomy](https://banes-lab.com/records/lexicon/unbounded-autonomy.md).

## Category

- [Security Privacy Compliance](https://banes-lab.com/records/lexicon-category/security-privacy-compliance.md)

## Negated by

- [Input Validation](https://banes-lab.com/records/architecture/input-validation.md)

## Linked from

- [Security / Privacy / Compliance / Governance](https://banes-lab.com/ontology/principles/architecture-category-security-privacy-compliance-governance.md)