Yet again we are reminded that sending an email to the wrong recipient is the most common form of data beach. The BBC tech report https://www.bbc.co.uk/news/articles/c363w8pjpklo concerns Guernsey, but this is a serious issue in the UK too.
In its guidance on common data protection mistakes and how to fix them at https://ico.org.uk/for-organisations/advice-for-small-organisations/getting-started-with-gdpr/common-data-protection-mistakes-and-how-to-fix-them, the ICO warns about the use of Autofill and suggests that ‘the few seconds you save by using Autofill could end up costing you a lot more if you send personal data to the wrong person by mistake.’
This is just one of the technical steps you might consider, to reduce the risk of a data breach.