Joseph Cox reports:
Even if an app allows encrypted communication, there are often still ways to find out about the people using it. Bearing that in mind, a researcher has found that just about anyone can snoop on the activity of Telegram users, and potentially figure out who they are talking to, by using a third party piece of software.
[…]
Ola Flisbäck, a consultant at Sony Mobile Communications, posted the findings to Github on Saturday. To uncover the flaws, Flisbäck used a third party, command line interface (CLI) client for Telegram.
Read more on Motherboard.