Identity and discovery
SK-ID vs phone-number discovery: what actually changes
A practical explanation of how identifier-based chat discovery reduces phone-number exposure, what it does not hide, and how to share an SK-ID safely.
Read guideSilent Key guides for safer temporary messaging
Detailed, product-specific guides about SK-ID privacy, temporary message deletion, metadata, browser notifications and Firebase-backed chat security.
Retention explained
The real lifecycle of a temporary message
Follow a temporary chat message from creation to expiry, defensive hiding, cleanup and conversation-summary repair without confusing expiry with guaranteed erasure.
Read guideUser safety
A practical safety checklist for private chat
A before, during and after checklist for sharing identifiers, protecting accounts, responding to unwanted contact and understanding temporary-message limits.
Read guideMetadata
What read receipts, reactions and presence reveal
Understand the metadata created by seen indicators, profile-photo read receipts, reactions, last-seen status and conversation previews.
Read guideDevice privacy
Browser notifications without accidental oversharing
Learn what browser notifications can expose on lock screens and shared devices, how Silent Key requests permission, and when to disable previews.
Read guideSecurity architecture
How a Firebase-backed chat app is secured, and where it can fail
A plain-language tour of authentication, Firestore rules, client code, admin permissions, data validation and the limits of browser-based security.
Read guideEditorial note: These pages document the actual product model and its limitations. They are not claims of end-to-end encryption, guaranteed deletion or professional legal advice.
Sponsored Partner
Workspace & Creator Essentials
Discover minimalist mechanical keyboards, artisan keycaps, and ergonomic desk accessories from our partner TwinCraft.
