Telegram, auth_key_id

This page addresses inaccurate claims about the auth_key_id parameter.

The auth_key_id parameter changes regularly and does not reveal user information, message contents, recipients, or private data. Any observer able to see it would already have access to more reliable network-level signals for tracking.

Dynamic identifiers like auth_key_id add no meaningful tracking power

Regarding Symbolic Software's research, we reject its conclusions. To use the auth_key_id parameter for tracking, an attacker would need a level of sophistication and visibility that makes the parameter redundant, because they would already have better ways to identify you that are outside Telegram's control.

That is like claiming someone can track your car using pigeon poop on the windshield when they can already see the color, model, direction, speed, and approximate location of any car.

The parameter described in the report changes regularly, contains no user information, and reveals nothing about who communicates with whom. Message contents and recipient data remain encrypted inside the protocol.

Any observer who can see your auth_key_id can also see your IP address, the server names you connect to, your traffic patterns, your DNS queries, and more. Hiding a frequently rotating identifier closes one window in a building made mostly of glass.

TLS, the protocol used by most web services and recommended in the article, itself allows a much easier way to link connections from the same user: whenever your browser reconnects to a site over TLS, it typically presents a session ticket in cleartext. This is standard behavior across much of the web.

Telegram owns its infrastructure, and its architecture precludes third-party access by design

Claims that Mr. Vedeneev — or any third-party hardware-support contractor — had "unprecedented access" to Telegram’s infrastructure or user traffic are false, technically illiterate, and misrepresent standard industry practice.

That is like claiming an electrician can read your books because they replaced fuses in the box outside your apartment.

Telegram's global network is designed from the ground up on a zero-trust model engineered so that physical proximity to hardware grants no access to any data residing within it and, specifically, NO access to:

• user data
• application-layer traffic
• encryption keys
• internal systems or configurations.

Notably, Telegram owns its infrastructure, including all of its servers. 

All servers, network devices, and application infrastructure are configured, managed, and controlled exclusively by Telegram’s internal engineering teams. All storage and network systems utilize hardware and software encryption, as well as logical isolation — traffic and data are encrypted in transit and at rest.