Not encrypted whatsapp backups
How has the IT security guy allowed them to continue to use whatsapp all this time knowing that while it has E2E encryption, it makes backups of your chats unencrypted on google servers?
It only needs one person in a group to enable backups form the constant nags and E2E encryption doesnt matter as its sitting on googles servers for various alphabet agencies to access, even those not supposed to access it.
Consider nothing said on whatsapp as safe since they added this front door in to your messages. I only wonder what politicians could have said that other countries could have used as intelligence to their advantage.