Telegram, the Russian messaging app has fixed a bug where users could get random people in their contact lists:
Hello! Due to the recent events Telegram became instantly popular in many countries all over the world. Because of this our team had to improve synchronization for contacts with local numbers, the ones without a country or city code.
Unfortunately, while trying to improve the contacts sync we broke it for a short period of time yesterday. As a result you might have been notified about random people from different countries signing up for Telegram and a fraction of them could contact you.
The problem was fixed yesterday. We tried our best to delete all wrongly imported contacts. We are really sorry about the inconvenience this may have caused to you.
The Telegram Team
Telegram is currently growing like crazy after Facebook announced it has bought Whatsapp.
Telegram Messenger has apps for iOS, Android and there are even unoffical Windows, Mac and Linux apps.
Unfortunately, it’s not completely fixed. I got contacted by somebody I don’t know from Lebanon. And I haven’t found out how to block people.