Quickbooks: https://quickbooks.intuit.com/global/security/
File Storage, Email, Phone: https://workspace.google.com/security/
Secure Upload Portal: https://www.dropbox.com/features/security
Recurring Emails: https://www.sendrecurring.com/privacy
Task Manager: https://ticktick.com/
Scheduler: https://tidycal.com/
Signatures: https://breezedoc.com/
PC Security: https://www.bitdefender.com/
ProtonVPN: https://protonvpn.com/
1Password: https://1password.com/