Compressed files from unofficial sources frequently contain malware or trojans bundled with the game data.
The update also highlighted a collection of fan art from the global player base. Security Warning Card.Shark.Build.8948588.zip
According to the official patch notes on SteamDB , this update primarily focused on: Card.Shark.Build.8948588.zip
For a safe and updated experience, it is best to access the game through official storefronts like Steam or GOG . Card Shark Version 1.2 and Fan Art! - SteamDB Card.Shark.Build.8948588.zip