I have a profile on LinkedIn, and quite often get contacted by recruiters enquiring whether I'd be interested in a position that they're currently recruiting for. The recruiters usually all ask the same questions: current position, reason for leaving, salary information, etc.
I recently had a recruiter call me about a role and after going through the usual questions, she then asked for my National Insurance number in order to be able to put my application forward. This immediately rang alarm bells for me, as I've never had a recruiter ask for this before, and it's obviously 'sensitive' information, and not something I want to give out over the phone to just anyone.
Am I just being paranoid here or is it normal for companies/recruiters to ask you for your National Insurance number as part of the application?
The National Insurance number is the British counterpart to the US's Social Security number and is also known as NI No or NINO.
Edit
I decided to try getting in touch with the client directly- sent them an email enquiring about this, and someone from their HR department got back to me to say that they had engaged this recruitment agency to recruit for the role. After explaining my concerns about handing out personal information prior to an interview, they said that they would instruct the recruitment agency to process my application without my NI No, but that I would be required to present it along with my passport at interview- which I am more than happy to do.