Hello guys, I see that most of the discussion here are based on the employees side. However, I fall under the employer side and I have a situation here.

An employee of mine was let go under probation but he was left extremely bitter because he didn't get the position while his other colleague got it.

After he left, he changed the passwords and deleted all our company's information, which I have screenshot proof already.

May I please know what are the things or actions I can take here? He still has not returned us access card and company phone.