Joining a public Telegram group carries no risk to your wallet or device by itself. The real risk in crypto groups is social engineering — unsolicited DMs from fake "admins" offering deals after you join. Maratona de Programação Brasil is listed in our directory, but the rule applies everywhere: never respond to DMs from unknown accounts after joining any crypto group. Your phone number is never visible to other members unless you've made it public in your Telegram privacy settings. With 2,542 members, Maratona de Programação Brasil is an established community — larger groups are generally less likely to be freshly created scam operations.

No. Telegram never notifies your contacts when you join or leave a group. Other members inside Maratona de Programação Brasil can see your username only if you post — your membership is not visible to anyone outside the group.

Maratona de Programação Brasil is a Telegram group for anyone interested in discord and olympiad. Members can expect regular discussions on university and competitive, along with programming to research.

We verify every listing is publicly accessible, has a minimum member count, and exclude groups Telegram has marked as harmful. Maratona de Programação Brasil currently has 2,542 members and is marked as active. If you've joined Maratona de Programação Brasil and noticed something suspicious — a review on this page helps others stay safe.