Why my computer and rename itself "aca80222"?

My computer was always named 'Jason MacBook Pro' and still looks like a terminal prompt:

Jasons-MacBook-Pro: ~ jason$

Oout of the blue in the last few days that he has changed:

ac80222: ~ $ Jason

What happens here?  I've been hacked?  Can I have a virus?  I have never seen it before.  What should I do and what causes this? Thank you.

Hello...

Not hacked or a virus but the drive may need repair.

Open disk utility , located in HD > Applications > utilities

Select MacintoshHD left and then click the first aid tab, and then click run.

Tags: Mac OS & System Software

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