You can steal ‘know’ but you can’t so easily steal ‘knowhow’. I could easily find all the information that I theoretically need to make a wooden chair. But to actually make it successfully would require years of practice at carpentry. At first, I can expect results comparable to
Homer Simpson’s spice rack.
https://www.bbc.com/news/world-europe-32542140
(it's particularly hilarious (in the bad way), that German secret services were participating in spying as well)
Thankfully some countries (here: Brazil) have some spine to react to it: https://www.reuters.com/article/business/saab-wins-brazil-je...