I meant - jokingly - the opposite, i.e. you call for a consultancy a security engineer as you are interested in increasing/bettering the digital security level of your business and he produces to you the Linux USB business card, you proceed to insert it in your computer and he says:

"Ah-ha!"

Reference:

https://www.imdb.com/title/tt0094898/quotes/qt1099763

In fact, a USB condom would be a nice variant of this project for a security engineer's business card, although the female USB portion might be a bit bulky for practical use.