Greetings! Recently, i have found out that i had an unused Raspberry Pi Pico that i did not do anything with ever since i bought it.

A random idea struck in my mind, i wanted to turn it into a security key!(https://www.picokeys.com/pico-fido/) Security keys (like the yubikey) are so goddamn expensive in my country. While i got a Raspberry Pi Pico for cheap. However, this brings me to the question: How secure can it be? Can anyone crack/clone the security keys off of it?

Thanks in advance.