Unfortunately, in a company this size, this outcome should have been expected. The first time I saw the banners, I wondered how long it would take until they leaked out to the public. Frankly, this was longer than I expected.
This was dumb on two counts.
1) The brain dead person who decided it would be a good idea to make and place banners with confidential company information in SFO flight ops.
2) The knob that took the photo and posted it on twitter.
Both should be terminated for gross incompetence.