alternativegran this is a bug that was actually identified two years ago and is called "Heartbleed". As the main servers haven't as yet advised resetting passwords, I do not think at the moment there would be anything to worry about. Several of us on here have received emails from mumsnet saying they have removed our passwords and we have to reset. I think there would be more advice about if there was a real panic and my DS in Germany says it isn't even on the news there. I asked the same about our passwords here but, I presume as we haven't heard anything it is considered safe.