IIRC Nintendo is also at this moment aggressively seeking out the leaker for the art book of the upcoming Zelda game.
yes they are
Nintendo isn't messing around searching for the Zelda: Tears of the Kingdom leaker
Nintendo is now seeking out the leaker's identity. Since the leak originated on Discord, “Nintendo of America is requesting the attached proposed subpoena that would order Discord Inc. ("Discord") to disclose the identity, including the name(s), address(es), telephone number(s), and e-mail addresses(es) of the user Julien#2743, who is responsible for posting infringing content that appeared at the following Discord channel
Zelda: Tears of the Kingdom”, Nintendo of America said in the subpoena request.
EDIT:
This isn’t the first time Discord has been at the center of Nintendo leak. In 2019, former employees took pictures of the then-unreleased title
Pokémon Sword and Shield and shared them over social media platforms like Reddit and Discord.
These photos depicted details of the strategy guide, which included new features like Gigantamax forms of certain Pokémon. As you can probably guess, Nintendo wasn’t too fond of this breach of trust and
took the leakers to court(opens in new tab), with each defendant paying $150,000 in damages.
It’s more than likely that the
Tears of the Kingdom leaker will meet the same fate. Despite the art book leaks not being the most earth-shattering of leaks, Nintendo will likely want to take legal action as a preventative measure to deter future would-be leakers. Spoiling video game information tends to cause more harm than good. It’s better to wait for the release date like everyone else rather than jump the gun and spoil the thrilling mysteries hidden in new releases.
And As I've pointed out in a previous case of a leak, they (WotC) settled out of court for an undisclosed amount of money. And other leaks have been met with banning from competition (also impact money-making), being backlisted (which can impact content creators making money)