What does the key symbol in the top right-hand corner of my phone mean now the key symbol

[Android Central Question]

Key symbol in the right-hand corner of my phone

 

[belodion]

It is a VPN icon.

https://forums.androidcentral.com/ask-question/409154-join-android-central-community.html

 

[Mooncatt]

Ad blockers can also cause this, because they essentially set up an in-phone VPN.

 

[mustang7757]

Show a screenshot?
https://forums.androidcentral.com/showthread.php?t=413366