What stays local when you log in somewhere new
Log into Telegram on a new phone or a fresh install and most of your account shows up in seconds. Every group, every channel, your contact list, your Saved Messages, all of it. That’s because Telegram is built around cloud storage for regular chats. The messages don’t live on your old device waiting to be transferred. They live on Telegram’s servers, and your new session just pulls them down over MTProto.
But not everything comes along for the ride. A handful of things are tied to the specific device or app install you’re using, not to your account, and they don’t move when you log in somewhere new. If you manage more than one Telegram session, whether that’s a personal phone plus a desktop client, or a fleet of hosted instances used for business accounts, knowing which pieces reset on every new login matters. It’s the difference between assuming a setting followed you and finding out the hard way that it didn’t.
What actually moves with your account
Regular chats, group and channel memberships, contacts, bots you’ve talked to, and Saved Messages are all stored server side. This is the core design decision that makes Telegram feel instant on a new device compared to apps that rely on local backups or device-to-device transfer. Your new session authenticates against your account, and the client just requests the chat list and history from the server the same way any other client would.
This also means logging in on a new device isn’t really “moving” anything. It’s opening a second window onto the same cloud data. That’s why you can be logged into Telegram on your phone, your desktop, and a browser tab at the same time, all showing the same chats, all staying in sync as you read and reply.
Secret chats never follow you
The one category of chat that does not live in the cloud is secret chats. They use end to end encryption with keys generated for a specific pair of devices, and Telegram’s own design intentionally excludes them from server storage. That’s the whole point of a secret chat: Telegram’s infrastructure never holds the plaintext, and there’s no server copy to hand to a new session.
Practically, this means a secret chat started on your phone will not appear if you log in on a new device, a desktop client, or a freshly provisioned instance. It’s not a bug or a sync delay. There’s nothing on the server to sync. If you need a conversation to survive account migrations or be visible across every device you use, it has to be a regular cloud chat. If it needs to stay off the server entirely, it has to be a secret chat, and you accept that it’s scoped to the device pair that created it.
For anyone running managed Telegram sessions where continuity matters, this is worth planning around up front rather than discovering after a device gets replaced.
Proxy configuration lives on the client, not the account
This one catches people off guard more than secret chats do, because it’s less publicized. SOCKS5 and MTProto proxy settings in Telegram are stored in the app’s local configuration, not in your account data. They’re set under the client’s own data and connection settings, and they stay on that install.
Log into the same account on a new device and the proxy field is empty. You configure it again from scratch on that client. This is true whether you’re switching phones, adding a desktop session, or standing up a new hosted instance for a business account that needs to route through a specific exit point.
If proxy routing is part of how you keep an account’s connection pattern consistent, plan for the fact that every new login is a blank slate on that front. It’s a five minute task to re-enter a proxy, but it’s an easy thing to forget when you’re focused on getting chats back and not on connection settings.
The local passcode and biometric lock reset
Telegram has two separate layers of protection that people sometimes conflate. There’s the cloud password, also called two step verification, which protects the login itself and is tied to your account. That one does travel with you, because it’s a property of the account, checked at login time regardless of which device is asking.
Then there’s the local passcode or Face ID and Touch ID lock, which controls whether the app can be opened once you’re already inside a device. That’s a device level setting, stored locally, and it does not exist until you set it up on that specific install. A new device starts with no local lock configured, even if your old device had one. If you rely on that lock as part of your access control on shared or hosted devices, it needs to be set again on every new session, not assumed to be inherited.
Cached media and storage settings start over
Photos, videos, and files you’ve already downloaded to a device sit in local storage as actual bytes on disk. The message referencing that file still exists in the cloud, so on a new device you can open the message and redownload the media, but the cached copy itself doesn’t transfer. Everything effectively starts as “not yet downloaded” on a fresh session, even for chats with years of history.
The same goes for storage and data usage preferences: auto-download rules for photos, videos, and documents over mobile data or wifi, and any manual storage limits you’ve set. These live in the client’s local settings, not the account, so a new device defaults back to Telegram’s stock settings until you configure it again.
Active sessions: what you can actually see
Under Settings and Devices, Telegram shows every active session tied to your account: the device name, the app version, an approximate location based on IP, and when it was last active. Each session is independent. You can end any one of them without touching the others, and a new login doesn’t automatically know about or inherit anything from a session you’re ending.
This list is the practical tool for knowing what’s actually logged in at any given time, separate from what data that session can see. Since every session pulls the same cloud chats, the session list is really an access log more than a sync log. If you’re running multiple sessions for legitimate operational reasons, checking that list against what you expect to be running is a quick way to catch a session that shouldn’t be there.
Why the split matters
The pattern across all of this is consistent. Anything that’s part of your conversation history and account identity lives on the server and follows you everywhere. Anything that’s about how a specific piece of hardware or software connects, locks, or caches stays local to that install. Neither is more “secure” than the other by default. They’re just different layers, and conflating them leads to bad assumptions, like expecting a proxy to already be set on a new instance, or assuming a secret chat backup exists somewhere it doesn’t.
If you’re setting up a new device or provisioning a fresh session as part of managed infrastructure, the honest checklist is: cloud chats and contacts will be there automatically, and proxy settings, local locks, secret chats, and cached media will not. Budget the few minutes it takes to rebuild the local pieces rather than discovering the gap mid-conversation.
If you’re setting up proxy configuration or managing multiple Telegram sessions and want infrastructure that accounts for this split from the start, check out what we run at telegramvault.org.
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