Gemalton's SIM encryption keys hacked (?)

The Intercept claims that NSA hacked and stole the encrustation keys across all sim cards manufactured by Gemalto.

The Dutch company supplies 2 billion SIM cards per year to a range of Tier 1 carriers, including Verizon Communications, Vodafone Group and China Mobile.

It is a known fact that NSA likes to hold on to as many encryption keys as they can. However, this is just going too far.