What security measures do you take while browsing IOPs?

[G.Elias]

There was a vendor that insisted on using temp pm,wouldn't answer you if you did not use it when contacting them unless you had an encrypted email like proton,I would use it along with an encrypted email addy,believe temp pm was encrypted plus it could only be read once then after that unable to read what had been sent in temp pm,all vendors should be using some kind of encryption,its getting to damn risky out there now not to do so.