Ultra Stack / Security

Proton

Privacy-focused mail, calendar, storage and account services.

Made by Proton

Why I use it

Its job in the stack

I use Proton where reducing routine data exposure matters. Mail, calendar, storage and related services provide an alternative to advertising-funded platforms for sensitive personal and operational communication.

Privacy still depends on behavior. Recovery methods, device security, forwarding rules and the data copied into other systems can weaken the benefit of the provider.

Where it earns its place

Work I use it for

  • 01Private email
  • 02Calendar
  • 03Encrypted storage
  • 04Account separation

Limits

What it does not solve

Integrations and collaborative workflows can be narrower than mainstream office suites. The tradeoff should be deliberate.