Last updated: 17 September 2026
K8 (“kate”) is a free message-scrambling tool operated by Transcom (Design Technology Ltd t/a Transcom). By using K8 you agree to these terms.
K8 encrypts and decrypts text entirely inside your browser using AES-256-GCM, with the key derived from your Pass Key. Nothing you type is sent to us. The scrambled output is produced on your device for you to share however you choose.
The privacy of a scrambled message depends entirely on the strength and secrecy of your Pass Key. You are responsible for choosing a strong, hard-to-guess Pass Key, for keeping it secret, and for sharing it safely with your intended reader. Because everything happens on your device, we have no copy of your Pass Key or message and cannot reset, retrieve or recover either one.
K8 is provided free and “as is”, without warranty of any kind. AES-256 is an extremely strong, industry-standard cipher and, used with a good Pass Key, a scrambled message is not practically breakable. However, no security method can be guaranteed absolutely: a weak, guessable or leaked Pass Key, or malware on a device, can defeat any encryption. You use K8 at your own risk, and it should not be relied upon as the sole safeguard for high-risk or safety-critical information.
We may withdraw or change the service at any time.
To the fullest extent permitted by law, Transcom accepts no liability for any loss or damage arising from use of K8 — including, without limitation, the inability to recover a message or Pass Key, or unauthorised access to a message resulting from a weak, shared or compromised Pass Key. Nothing in these terms excludes liability that cannot be excluded under English law.
These terms are governed by the laws of England and Wales. Questions? info@transcom.co.uk.
