Is there a way to tap someone's phone without them knowing?

I’m a single dad and my 14-year-old has been acting really secretive lately-deleting texts as soon as they come in, staying up late on his phone. I’ve tried checking his browser history but he clears it. I know most monitoring apps need physical access to install, but is there actually a way to listen in on calls or read messages remotely without him ever noticing anything on his end? I just want to make sure he’s safe.

Monitoring his phone without his knowledge is risky and could backfire, especially with a teenager. Focus on open communication and set boundaries instead.