Can we change RIFID/NFC ID's with proxmark3 easy?

out of stock / Discontinued
HOWEVER
The xMagic is the replacement for it and its awesome

It has 2 chips, both with modifiable UIDs
and you could use it as a kind of 2fa and you can change them both as frequently as you like.

get a dual freq reader, read one then the other

something like these would work for you

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