It suggests that the information was obtained through unofficial channels, like gossip or rumors, rather than through direct communication.
Example:
* "The manager got wind of the employees' plan to strike and quickly took action to prevent it."
Here, the manager learned about the strike plan through whispers and rumors, not from the employees themselves.
The phrase "get wind of" implies a sense of surprise or unexpectedness, often related to potentially negative or unwelcome information.