I'm not super familiar with this case or the ATT vs weev one, but I thought I read that the prosecution in the weev trial made the argument that accessing information in the open, like that of server logs is hacking? If that precedent was set, wouldn't that have an effect on when a warrant is required or no? Just curious
No. A warrant means you can do extra special stuff, like search someone's house. With a warrant, you can search for whatever you like, however you like.