My sister would what’s your id
The answer & explanation for this question is given in the attachment below.
Nand stands for "not and". The truth table for a nand is:
a b | a nand b
0 0 | 1
0 1 | 1
1 0 | 1
1 1 | 0
Hopefully this helps you answer your question.
They would be able to do a lot of stuff. Such as log into your email account, or what ever account they phished.