What "destroyed" actually means.
Most products that use this word are describing a delete operation. This page is about what survives on real hardware, including the parts that are inconvenient for us.
Things that normally leak a secret
Swap and hibernation
A running OS pages memory to disk. A hibernation image is a complete copy of RAM written to your drive. Neither exists here: no swap is configured and there is no driver that could write the image.
Shell history and logs
No shell is exposed and no logger runs. There is no journal to scrub because none is started.
Clipboard
Copy is off by default. Clipboard managers on host systems are one of the most reliable ways secrets escape — and there is no host system running here.
Printers
Do not print your seed. Network printers spool documents to an internal disk and many keep them. Handwriting is not nostalgia; it is the only output path with no intermediate storage.
RAM remanence, stated honestly
DRAM does not clear instantly at power-off. Contents decay over seconds at room temperature, and can persist substantially longer if the modules are physically cooled. This is a real, published attack.
What it requires: physical access to your machine within seconds of you powering it off, with equipment prepared in advance. If that is your threat model, you have a problem this product does not solve, and you should be generating keys on dedicated air-gapped hardware you never move.
For everyone else it is worth knowing about and not worth losing sleep over. We mention it because a page about destruction that omitted it would be marketing.
What this does not protect against
A camera. If someone is filming your screen, nothing in this design helps. Generate keys alone, away from windows and away from anything with a lens.
Hardware implants. A keylogger sitting between your keyboard and your machine works regardless of what operating system is running. Booting from our stick does not inspect your hardware.
Your own backup. Once the words are on paper, the paper is the whole security model. Fire, flood, and other people are now the threat.
You, later. The most common way people lose Bitcoin is not an attacker. It is an unverified backup, a forgotten passphrase, or a single copy in one location.