This is the 13844th most frequent Russian word.
обеспечен
"Обеспечен" means "provided for" or "secured."
In this sentence, 'обеспечены' is used to indicate that someone was supplied with something necessary or required.
Они были обеспечены всем необходимым для работы.
They were provided with everything necessary for work.
Here, 'обеспечено' describes a state of being secure or certain, indicating a sense of confidence about the future.
Он ощущал, что его будущее обеспечено.
He felt that his future was secure.
In this case, 'обеспечивать' (related form) is used to express an ongoing action of providing or ensuring something, specifically safety.