As Variety describes, "His office was in a secluded space, and he had a button under his desk that allowed him to lock his door from the inside without getting up."
In other words, he used the button to trap the female colleagues he would harass.
“There were a lot of consensual relationships, but that’s still a problem because of the power he held,” says a former producer who knew first-hand of these encounters. “He couldn’t sleep around town with celebrities or on the road with random people, because he’s Matt Lauer and he’s married. So he’d have to do it within his stable, where he exerted power, and he knew people wouldn’t ever complain.”
Again, these are the consensual incidents. There were, of course, the ones where he just locked women in his office and harassed them.
Lauer also liked to harass women on the road.
The question then becomes how could they not have known when Lauer demonstrated such a pattern of misogyny and harassment?
Lauer was known to harass attractive female colleagues, and not only that, he showed his misogynistic bias in his reporting. Variety explains:
And yet, NBC brass didn't do anything. In fact, they actively covered for him.
But keeping Lauer happy came at the expense of everyone else.
Even worse, Lauer didn’t seem at all reflective of his own behavior. Variety again:
In September, Lauer asked Fox News star anchor Bill O’Reilly if he’d ever sent lewd text messages to colleagues. “Think about those … women and what they did,” Lauer said. “They came forward and filed complaints against the biggest star at the network they worked at. Think about how intimidating that must have been. Doesn’t that tell you how strongly they felt about you?”