Scenic Places to Bike Santiago Canyon Rd is great, when want a nice long and scenic ride. Depending on the direction you go it can be pretty quick or slow (more constant climbing heading east).
Along the way you can also turn to go up toward Silverado canyon which has a cool little country store to stop at along the way, that portion is an out and back.
Another good route is up through Sleepy Hollow (Route 142) and then coming back down via Diamond Bar Blvd into Brea Canyon.
No point telling others where you work Not even your friends. Only a vague description is fine enough, as there's no point saying more. I legit see zero upsides of doing so.
Of course there are cases where it's necessary to give that info. But otherwise, the risks vastly outweigh any benefit. Especially if they know any already sensitive info about you. Never know when a mutual can go sour. And no one really cares what specific company you work for anyway, for the most part. People are only a tad more interested in the industry you're in.
Not saying recent story was true or anything, think there would need be more evidence. But in case a similar like situation happens.