[ocrp1982]

So, as long as you don’t use modern tech stealing is not stealing? There are Legal Ways to Steal?
Where in the Baseball Rule Book is this outlined? Is there a Baseball guideline detailing Legal Stealing versus Illegal Stealing?
No. There isn’t.
Once again, the attempted and or, successful stealing of signs from opponents has been going on since the beginning of the sport.
The elaborate signing in Baseball is an acknowledgement of this fact and, an attempt to prevent the opposition from understanding what the team using the elaborate signals are trying to communicate. This is an undeniable fact.

[KevinB]

Is there a Baseball guideline detailing Legal Stealing versus Illegal Stealing? No. There isn’t.

Yes, there is. From Wikipedia:

Legality of Sign Stealing