hi any body know about iron key" s

i have all way wanted to keep pic's, yield's and notes on all my growth's

but if i got raided they would find them, well if i have this right i could buy a iron key and give it to them and say good luck if i got raided

yeah there loads of money but know body is able to get the files off that pen
and it self destructs after you entering the password wrong a few times

do these key's work ?

thanks