# Switch to Protonmail Reason #24: Verify a trusted correspondent's PGP key before sharing sensitive information

Encryption to the wrong key can defeat the point of a protected message.

2026-09-08
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Switchboard Tech Services


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## Why this matters

Encryption to the wrong key can defeat the point of a protected message. Privacy is easier to defend before this information is collected than after it has spread.

## The protection

Proton offers key trust and verification tools for contacts using PGP.

## Take action

Confirm a sensitive contact's key through an independent channel before trusting it. A displayed name alone is not identity proof. Email protection depends on the route and settings. Ordinary mail involving outside providers is not automatically end-to-end encrypted, and email metadata is not universally hidden.

## Sources

[PGP with Proton Mail](https://proton.me/support/how-to-use-pgp), [Proton Mail security checklist](https://proton.me/support/new-account-owner-security-checklist).

- Categories:
  [Proton Mail](https://switchboardtechservices.com/guides/categories/proton-mail/)
- Tags:
  [#Digital Self-Defense](https://switchboardtechservices.com/guides/tags/digital-self-defense/), [#Proton Mail](https://switchboardtechservices.com/guides/tags/proton-mail/), [#Email Privacy](https://switchboardtechservices.com/guides/tags/email-privacy/), [#Identity Verification](https://switchboardtechservices.com/guides/tags/identity-verification/)

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Canonical URL: https://switchboardtechservices.com/guides/switch-to-protonmail-reason-24/

Language: en-us

Content type: guide

Author: Switchboard Tech Services

Published: 2026-09-08T05:26:42+00:00

Description: Why verify a trusted correspondent's PGP key before sharing sensitive information matters for privacy and security.