First you need to create the design. Considering most people do not have editing skills, I assume you downloaded a file from some where and started from there. Which is already a possible danger. Then you create a Seed and wrote it down in the design. I have to guess you did not do all of this on an offline computer that got wiped after. And then you communicated that file to a printer which if modern probably has an Internet connection and possibly even storage. Which to my high level paranoia, it means the gift could be compromised!
Being paranoid when it comes to cold storage, I was thinking the same thing.
Thanks for this. I'm aware of this; I entered and printed the seeds on my secured MacOS computer during OFFLINE.
I first have the template in PDF -> no seeds or public address printed yet.
I created a Python script that I will run offline, and printer is ready to print: In this script, I will enter the 12 words, the public address, and proceed = it will direct print the paper, after that (this does not generate new PDF file as it is directed to print).
I also make sure no more Preview open or files were generated, and the recycle bin is also empty before I turn the internet back on.
For proper cold storage, it's not enough to turn off the internet. I always assume malware will patiently wait for the internet to come back, and broadcast your secrets.
I used to recommend Knoppix for running Linux LIVE from RAM, nowadays I'd recommend Tails. But that won't run on a Mac, you'll need a PC. See
this post for a starting point to work with offline cold storage.
May I suggest to at least fold the paper and add some tape or tamper proof stickers so the seed phrase is not in plain sight?
This is a truly real and valuable gift, instead of all the trash (cash and toys), which will be useful in the future for this child.
Then, when she's 3, she'll use the paper to show off her paint skills
