ShieldBox vs ProtonMail
ProtonMail is genuinely privacy-focused — but Swiss privacy law is not Australian law. For Australian Privacy Act compliance and data sovereignty, there's a clear winner.
4 reasons ProtonMail isn't enough for Australian compliance
Australian law governs your data
ProtonMail operates under Swiss FDPA. For Australian businesses, that means your email data is governed by a foreign jurisdiction — not the Privacy Act 1988.
Australian sovereignty vs Swiss jurisdiction
ProtonMail operates under Swiss law. Any Australian government agency or defence supplier requires Australian data sovereignty under the PSPF — full stop.
AI features ProtonMail doesn't have
ProtonMail has no AI inbox assistant. ShieldBox's AI features are built and processed on Australian servers — privacy-first and productivity-first at the same time.
Works natively, no Bridge needed
ProtonMail requires their Bridge app to connect to standard email clients. ShieldBox works with any IMAP/SMTP client natively, with no extra software required.
ProtonMail operates under Swiss law — not Australian law
Switzerland has strong privacy laws (the FDPA), but they are not the Australian Privacy Act 1988. For Australian healthcare providers, law firms, accountants, and government contractors, compliance obligations require data to be governed under Australian law — not foreign law, even friendly foreign law. ProtonMail's Swiss jurisdiction cannot satisfy APP 8 requirements.
ShieldBox vs ProtonMail: full comparison
| Feature | ShieldBox | ProtonMail |
|---|---|---|
Australian Compliance | ||
Australian data sovereignty | Yes | No |
Hosted on Australian servers | Yes | Switzerland only |
Privacy Act 1988 (AU) compliance | Yes | No |
Governing law jurisdiction | Australian law | Swiss FDPA |
ASD Essential Eight aligned | Yes | No |
ASD Essential Eight alignment | Yes | No |
NDB scheme data breach notification | Yes | No |
Spam Act 2003 compliance | Yes | No |
Security & Privacy | ||
Zero-knowledge architecture | Yes | Yes |
End-to-end encryption (E2EE) | Yes | Yes |
AES-256 encryption at rest | Yes | Yes |
ISO 27001 aligned | Yes | No |
Open-source client | No | Yes |
Ad-free experience | Yes | Yes |
Features & AI | ||
AI inbox assistant | Yes | No |
Calendar (CalDAV sync) | Yes | Proton Calendar |
Contact sync (CardDAV) | Yes | Bridge required |
Custom domain hosting | Yes | Paid plans only |
IMAP / SMTP access | Yes | Bridge required |
Shared team inboxes | Yes | No |
Support & Business | ||
Free tier available | Yes | Yes |
Australian support team | Yes | No |
Contractual Australian data guarantee | Yes | No |
Government sector (APS) approved | Yes | No |
Healthcare / Legal sector approved (AU) | Yes | No |
To be fair — ProtonMail is genuinely excellent for individuals
If you're an individual who values privacy above all else and doesn't have Australian compliance obligations, ProtonMail is a great choice. It's open-source, truly zero-knowledge, and built by people who deeply care about privacy.
But for Australian businesses with Privacy Act obligations, regulated industries, or government contracts — you need a platform that operates under Australian law, stores data on Australian servers, and provides Australian support. That's ShieldBox.
Who needs to move from ProtonMail to ShieldBox?
Patient data is subject to the Privacy Act. Swiss jurisdiction (ProtonMail) cannot satisfy APP 8 obligations for health information.
The Law Council of Australia requires client data to remain under Australian legal jurisdiction. Swiss law doesn't qualify.
Australian data sovereignty is required under the PSPF. ProtonMail stores data in Switzerland. There is no workaround for APS and state government agencies.
Tax agent obligations under the Tax Practitioners Board require client data under Australian jurisdiction.
PSPF and ISM controls require data to be held in Australia by an Australian-sovereign provider.
ProtonMail lacks shared inboxes, admin consoles, and team features. ShieldBox handles business email for growing teams.
ProtonMail vs ShieldBox by Industry
See how ProtonMail compares to ShieldBox for your specific industry — Swiss jurisdiction vs Australian law, data sovereignty, and compliance requirements.
Move to the Australian alternative
Full ProtonMail import support — every email migrated, zero data loss.
Start migrating from ProtonMail