Credit fraud?

So I check my credit score every so often just cause I’m curious. I Recently noticed that there are hard inquiries that I did not apply for it’s like a Verizon credit line I think I don’t even know what it is and I didn’t apply for anything and now I don’t know what to do, the sears & citizens bank are ones I did but the two Verizon ones I didn’t I asked my mom wondering if she applied for it because she wanted to put the cable bill in my name and I told her no so I thought she did it behind my back but she said she didn’t.