Use #VeraCrypt or even better: migrate machines to #Linux and use #LUKS / #dmcrypt instead, as it's the best option at hand.
If you need to shuttle data to #Windows and #macOS machines and using #SFTP / #SSHFS to mount a secure storage over the network isn't an option, than you're stuck with VeraCrypt, as #Windows' #CryptoAPI is evidently #backdoored to the point that every #Browser except #Firefox is susceptible to #SSL hijacking with background updates...