can i lock my phone from pluging into pc

[WINTERLORD]

how can I put a password on the phone so if someone plugs it into a computer they cannot read it

 

[Titillating]

What kind of phone are you using? With a lot of Android phones, if you have a screen lock in place, it will usually require you to input the correct PIN/pattern/password/fingerprint before it can be fully accessed from a computer.