![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/STU-I.jpg/220px-STU-I.jpg)
The STU-I, like its successors sometimes known as a "stew phone", was a secure telephone developed by the U.S. National Security Agency for use by senior U.S. government officials in the 1970s.[1]
![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/00/STU-I.Young.jpg/220px-STU-I.Young.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/STU-I-cabinet.jpg/220px-STU-I-cabinet.jpg)
See also[edit]
References[edit]
- ^ "STU-I Secure Phone". www.cryptomuseum.com. Retrieved 2022-09-17.