Community safety

Stop the Telegram fake-admin scam at the door.

Scammers join a group, clone an admin’s name and photo, then privately message members about wallet “verification” and support fees. Limzo checks every join and rename for members impersonating an admin and hands your admins a one-tap ban — on by default, on every plan.

Joins and renames, both watched

Every join — and every rename that surfaces when a member posts — is checked against your admins’ names and usernames, and against Limzo itself. Subtle disguises are caught too, not just identical copies.

A private alert, a one-tap ban

The moment an impersonator appears, your connected admins get a DM with two buttons: Ban removes the impersonator on the spot, and “Looks fine” permanently whitelists a genuine coincidence so it’s never flagged again.

Auto-action for Pro groups

Pro and Community groups can skip the wait: clear impersonators are auto-muted for 24 hours or auto-banned instantly. Anything borderline always stays a human decision — the guard never auto-punishes a maybe.

How the fake admin scam works

It is one of the most common scams in large Telegram communities, and it often never posts a single message in your group. Someone joins quietly, copies an admin’s display name and profile photo, and starts messaging members privately — posing as “support”. The scripts vary: your wallet needs verification, a giveaway needs a small deposit, an account issue needs a fee. The name looks right, the photo matches, and by the time anyone checks the actual @username, money or seed phrases are gone.

Crypto and trading groups are hit hardest, but any group with a visible member list is a target. And because the damage happens in private chats, admins usually find out days later — after several members have already been burned.

What Limzo’s impersonator guard does

Limzo checks every join and every rename against your admin team’s names and usernames. The matching is built for the disguises scammers actually use, not just identical copies. On a match, your connected admins get a private alert with one-tap Ban / Looks-fine buttons — choosing “Looks fine” whitelists that member for good, so a real member who happens to share your admin’s name is flagged once, ever. Alerts are deduplicated and rate-limited, so even a raid of clones can’t flood anyone’s DMs.

The guard is on by default on every plan, including Free — member safety shouldn’t sit behind a paywall. Pro and Community groups can additionally set an automatic action in the Mini App’s Moderate tab: clear impersonators get muted for 24 hours or banned instantly, while anything borderline always waits for a human. Every detection is logged in the Mini App alongside the rest of your moderation activity.

One honest limit, and it applies to every bot: Telegram doesn’t notify bots when a member renames themselves, so a rename is caught when that member next posts in the group. A scammer who joins under an innocent name and only ever sends private DMs is invisible to any bot — which is exactly why the habits below matter too.

Three habits that finish the job

Pin the rule “admins never DM first.” One pinned message defuses the scam’s core trick. When members know a real admin will never open a private chat about wallets, payments, or verification, the script collapses on contact.

Hide the member list. In larger groups, Telegram lets admins hide the member list from regular members. Scammers harvest their DM targets from that list — hiding it shrinks the attack surface dramatically.

Teach the @username check. Display names and photos are freely copyable; usernames are unique. A ten-second “tap the profile, read the @username” habit catches nearly every impersonator a bot can’t see.

Common questions

A scammer joins a group, copies an admin’s display name and profile photo, then privately messages members posing as support — asking them to “verify” a wallet, pay a fee, or share a seed phrase. The display name looks identical; only the @username gives it away. Crypto and trading communities are the most common targets, but any group with a visible member list is exposed.
Not directly — Telegram bots cannot see private messages, and any bot claiming otherwise is overpromising. What a bot can do is catch the impersonation inside the group: Limzo checks every join and rename against your admins’ names and alerts admins with a one-tap ban before the impersonator reaches many members. Pair it with a pinned “admins never DM first” notice and a hidden member list.
Yes — it is on by default on every plan, including Free, with a per-group off switch in the Mini App’s Moderate tab. Pro and Community groups can additionally set an automatic mute or ban that fires only on clear impersonations, never on uncertain ones.
Free to start

Try it on your own group.

Add Limzo, and this week your group gets its first highlights post, its first badges, and a public stats page worth sharing. Free plan included — Pro is $9/month when you need more.

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