Some things should not travel as loose attachments — scans of an ID, a salary sheet, a set of certificates going to one office.
Lock files with a password →Free every day without an account on some tools. Your file is deleted the moment the job finishes.
The files go into a single zip encrypted with AES-256, which is the standard a bank uses, not the old zip scrambling that is broken in seconds. The names inside are encrypted too, so the list of what is in there is not readable without the password. It opens with the ordinary tools people already have. Send the password by another route than the file, and remember that nobody can recover it for you — not even us.
No. It is AES-256, the standard a bank uses, not the zip scrambling that is broken in seconds.
No. The names inside are encrypted too.
The ordinary tools people already have — Windows with 7-Zip, macOS with Keka, Android and iOS with any zip app that supports AES.