This is the 1474th most frequent Spanish word.
privados
"Privados" means "private" or "privates" (depending on the context).
In this sentence, 'privados' is used as an adjective to describe 'datos', indicating that the data are not public and restricted to certain individuals.
Los datos privados deben protegerse adecuadamente.
Private data must be adequately protected.
Here, 'privados' modifies 'baños', indicating that these bathrooms are exclusive and for individual use by guests.
Los baños privados del hotel están disponibles para los huéspedes.
The private bathrooms of the hotel are available for guests.
In this example, 'privados' characterizes 'encuentros', signifying that these meetings were confidential and not open to the public.