If you (e)xamine a card reader you are not told that it is a card reader, and it does not respond with “You need a hacking tool to use this” (or whatever the phrase used to be).
They still work if you have the right card, but you should get some sort of response / description from examining them.
i can confirm this on last 4 experimental build, checking the card reader didn’t say anything on the log. which possibly makes player think its broken.