Education Minister Erica Stanford is not alone in forwarding Parliament and ministerial emails to her personal account - with Nicola Willis and Chris Bishop revealing they're guilty of similar acts.

The Cabinet Manual says ministers should avoid using personal mobile and email accounts wherever possible.

 CISO Lens Country Manager Nadia Yousef says Webmail services like Gmail can be safe if you use a strong password multi-factor authentication - but it's not an appropriate tool for Government use.

"Long, strong and unique passwords - it's something we talk about all the time and everyone's absolutely sick of hearing it - but they are the silver bullet with multi-factor."

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