how to fix "hi,I lost this device!"? (with my CM Security)

[AC Question]

it was happen when i click the "lock" button and it's always shown in my screen(Hi,I lost this device).
would you help me plz?

 

[ggendel]

This may be your lock-screen message. On the Blackberry Priv, this is set using these instructions:
https://help.blackberry.com/en/priv/5.1/help/tom1437750942942.html
You might have a similar option on your phone.