This is the 10324th most frequent Polish word.
chronionych
"Protected."
Here, "chronionych" describes the documents, implying a state of being under protection.
Te dokumenty są uważane za ściśle chronionych.
These documents are considered to be strictly protected.
"Chronionych" modifies "serwerach," indicating that the servers have protection in place.
Nasze dane osobowe są przechowywane na chronionych serwerach.
Our personal data is stored on protected servers.
In this context, "chronionych" functions as an adjective qualifying the plural noun "gatunków" to indicate they are protected.