> Obtaining data isn't stealing.

What is it then, if you don't have the legal right to the data?

If some law prevents you from having access to some data, then presumably that law has a name for whatever the crime is.

It's not like we need the law to explicitly allow types of access. Anything not explicitly disallowed is allowed without a special name.

"Stealing" happens when the original owner is deprived of the thing.

It's something different from stealing.

Both "hacking" and stealing are illegal in most countries, but they're still completely different actions: one is taking a physical object from someone, the other is sending and receiving electrical pulses trough a wire.

You wouldn't call stealing and killing by the same word, either, even though both are illegal.

Infringement

Seriously. Theft requires the property owner be denied their property.

What happened is someone made a copy they were not supposed to.

Textbook infringement.