Given she worked in print and they didn't print her photo on bylines, the average joe didn't know what she looked like. More than once she got a juicy lead on a story just be overhearing people talking about work when they were in queues at the grocery store or bank.
Also, I once took a seat on a train in a group of four seats. 3 guys in suits came and took the other seats, and then started having a conversation about financial details of a construction project for Company X. After about 15 minutes I said "Look, sorry. I can't let you talk about this any more. I work for Company X."
They didn't get the contract.
Serves them right. Just because I dress like a tramp doesn't mean that I don't have a job where I know the people who'll get your multi-million dollar contract cancelled for being careless with confidential details.