# 9.1 Threat Model Overview

"***What attacks are eliminated — and why"***

PTERI does not attempt to defend against every theoretical attack.\
It eliminates **entire classes of real-world attacks** by removing their prerequisites.

PTERI assumes:

* Networks are hostile
* Servers may be compromised
* Credentials will leak
* Automation will be abused
* Attackers are persistent

PTERI **does not assume**:

* Trusted servers
* Secret storage safety
* Honest intermediaries
* Manual review as a defense

Instead, PTERI relies on:

* Cryptographic proof
* Deterministic verification
* Minimal trust surfaces

***

<figure><img src="/files/xeim7aGaLhPHVHP0Gtvz" alt=""><figcaption></figcaption></figure>


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