If so then I'll be doubly frustrated - I've been assured by our domain experts that this is a requirement of the model. Did it used to be and was since retract

If so then I'll be doubly frustrated - I've been assured by our domain experts that this is a requirement of the model. Did it used to be and was since retracted? I suppose it may be a local or state-based 'implementation augmentation'. I've trawled just now through the signals directorate site and can find plenty of references to passwords, but nothing specifically covering this.