[tlrobinson]

"Two people briefed on the matter said that an N.S.A. special team will sometimes work with a corporate victim of hackers to ensure that no trap doors remain."

Well, no NSA backdoors, at least.

[orangechicken]

I think you mean "no non-NSA backdoors, at least."

[tlrobinson]

Oops, of course, yes that's what I meant.