I have had a few instances recently where people are sending sensitive information over email, and they are using Hotmail/BT/AOL/Yahoo mail. These are often not very secure, gmail seems a bit more secure but even then please remember that email is not 100% secure! If you need to send sensitive info use an encrypted service like what’s app or similar!
https://www.filemail.com/blog/email/why-email-is-not-secure
