I remeber noting with concern several years ago that Safari was blindly saving my credit card number along with all my other auto-fill data. Thing is, I recall

I remeber noting with concern several years ago that Safari was blindly saving my credit card number along with all my other auto-fill data. Thing is, I recall observing that behavior stopping around Safari 4 or so – the browser appeared to be using something along the lines of the data detectors that put calendar links on times mentioned in emails, and saving everything but the credit card field.