I'm not really surprised, because, well, whatever people do just ceases to surprise at some point, but I guess it's quite likely that there's something in my co

I'm not really surprised, because, well, whatever people do just ceases to surprise at some point, but I guess it's quite likely that there's something in my contract (and I guess it's quite typical, so the same could be assumed about yours) that legally disallows me to disclose whatever there is to disclose about my relations with my current employer, including my salary. Of course, it doesn't stop me from actually doing so, because, well, the inequality of market knowledge between your typical employer and your typical employee just really isn't fair when it comes to discussing your remuneration. But sure as hell I'd remember of that NDA thing when asked of something like this by an HR, and would try to sound as shocked by the assumption I can disclose something like this, as possible.