# K5 is enciphered with K4's method and key, so its release will make K4's method recoverable by comparison.

> Still possible: K5 is enciphered with K4's method and key, so its release will make K4's method recoverable by comparison.

Source: https://mysteriesdept.com/mysteries/kryptos/answers/ANS0D7HTFM439BD/k5-is-enciphered-with-k4s-method-and-key-so-its-release-will  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Kryptos](https://mysteriesdept.com/mysteries/kryptos)[What is K5 and will it be released?](https://mysteriesdept.com/mysteries/kryptos/questions/QST0D7HT8HJ3Z98/what-is-k5-and-will-it-be-released)Answer

Answer · Kryptos

# K5 is enciphered with K4's method and key, so its release will make K4's method recoverable by comparison.

K5 is enciphered with K4's method and key, so its release will make K4's method recoverable by comparison.

**Still possible** Answers **1** questionPublished0

## Where it stands

**Still possible** Its tests haven't settled it: one piece of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- Where K4 and K5 share plaintext words in the same positions, they share ciphertext letters there.

## What would rule it out

- K5's ciphertext shows no positional agreement with K4.

## Evidence 1 for · none against

[Sanborn says K4 and K5 share some coded words in the same positions.](https://mysteriesdept.com/mysteries/kryptos/evidence/EVD0D7HTFVY37NH/sanborn-says-k4-and-k5-share-some-coded-words-in-the-same)

Suggestive

FOR

## The questions it answers

[What is K5 and will it be released?](https://mysteriesdept.com/mysteries/kryptos/questions/QST0D7HT8HJ3Z98/what-is-k5-and-will-it-be-released)

Part of [Is K4 solved, known but withheld, or open?](https://mysteriesdept.com/mysteries/kryptos/questions/QST0D7HT7T41TBW/is-k4-solved-known-but-withheld-or-open)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). K5 is enciphered with K4's method and key, so its release will make K4's method recoverable by comparison. [Answer ANS0D7HTFM439BD]. https://mysteriesdept.com/r/ANS0D7HTFM439BD
```

Key

**ANS** 0D7HTFM439BD

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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