There's other threads here were people suggest this.
It seems pretty speculative to me that there's some large database with all of the mandated software backdoors and keys to get access to. And if it existed, I don't know that it would be such a large threat.
Certainly security bugs and professionals inside of industry are targeted by hackers already.
Given everything else, I don't know how large an issue this is (compared to say, hacking nuclear defense systems, energy grid, military C2C, etc).
It would be interesting to see whether this is considered a threat scenario by the USG.