when putting my simcard into my new samsung8 a message comes on saying it's not from verizon?

[lorenas2much]

when putting my simcard into my new samsung8 a message comes on saying it's not from verizon?

 

[lorenas2much]

i purchased and unlocked samsung 8 and it states for all gsm but when i put in the sim card it says not a verizon sim card? does that mean it's locked?