# [TUHS] RIP Peter Salus
Source: [https://www.tuhs.org/pipermail/tuhs/2026-May/033750.html](https://www.tuhs.org/pipermail/tuhs/2026-May/033750.html)
**Dan Cross via TUHS**[tuhs at tuhs\.org](mailto:tuhs%40www.tuhs.org?Subject=Re%3A%20%5BTUHS%5D%20RIP%20Peter%20Salus&In-Reply-To=%3CCAEoi9W7wcGNneMjZihO%3DePM0od8MtUHyTDCH_ChqB1SNCsM7Ew%40mail.gmail.com%3E)
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```
I just found out that Peter Salus passed away on May 15. His "Quarter
Century of Unix" is required reading for any serious student of Unix
history.
- Dan C.
```
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Peter Neumann, a pioneering computer security researcher and Multics contributor, has passed away at a hospital in Santa Clara due to complications from a fall and surgery.
An analysis of common misconceptions about the UNIX philosophy, arguing that the common interpretation of small programs communicating via pipes is a misunderstanding of the original design principles.