A look at Telegram's claims that it is a “secure messenger” despite lacking default end-to-end encrypted messages and any E2E encrypted option for group chats
This blog is reserved for more serious things, and ordinarily I wouldn't spend time on questions like the above.
Context & Ripple Effects
This critique extends a recent dispute over Telegram’s security positioning, after its CEO’s attacks on Signal prompted a review of why experts generally treat Signal as the stronger security model. The important distinction here is between a service’s broad security branding and the protection actually available by default.
It also fits a wider record of messaging products offering encryption with material limits: Twitter’s earlier encrypted-DM rollout excluded group messages and restricted eligibility. Telegram’s lack of an E2E option for groups makes that limitation central rather than peripheral.
First-order effects
- Telegram’s “secure messenger” positioning faces a concrete credibility test: its ordinary one-to-one messages are not end-to-end encrypted by default, and group-chat users have no E2E mode to select.
- Users who need E2E protection for conversations involving multiple people cannot obtain it through Telegram’s group-chat product, regardless of the app’s broader security claims.
Second-order effects
- Security comparisons between Telegram and E2E-first rivals become less about branding and more about whether encryption is default, available for groups, and understandable to users; the prior Signal-versus-Telegram security debate is likely to remain a reference point.
- Messaging services that market encrypted features while limiting group coverage or access face closer scrutiny of product defaults, not merely the existence of an optional encrypted mode.
Third-order effects
- If this scrutiny persists, “secure messaging” will increasingly be judged as a set of verifiable product properties—default E2E, group support, and clear user expectations—rather than a general marketing label.
- That could widen the divide between platforms built around E2E as a default communication model and platforms that reserve it for narrower use cases, though the corpus does not establish how users or Telegram will respond.
The trend: Messaging-security claims are moving toward evaluation of encryption defaults and group-chat coverage, not just whether an app offers encryption somewhere in its product.