Is std::random_device cryptographic secure?

I see many people talk about security and std::random_device together.

For example, here slide 22.

According to cppreference, std::random_device :

std::random_device is a uniformly-distributed integer random number generator that produces non-deterministic random numbers.

It does not talk about security explicitly.

Is there any valid reference that explicitly mentions std::random_device is secure for cryptography?