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. Blockchain Island Official 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.

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

Blockchain Island Official is a Telegram group for anyone interested in travel and fintech. Members can expect regular discussions on tourism and cryptocurrency, along with blockchain to explore.

We verify every listing is publicly accessible, has a minimum member count, and exclude groups Telegram has marked as harmful. Blockchain Island Official currently has 401 members and is marked as active. If you've joined Blockchain Island Official and noticed something suspicious — a review on this page helps others stay safe.