Ahmed's Notes corrects IE6 width calculation Monday, January 4, 2021 A few years ago, while using the Line app, I noticed a feature called "People nearby." The feature lets you connect with other Line users within the same area. The feature would give you the exact destination from you to the other users. If someone spoofs their latitude, longitude, they can triangulate a user and find their location. I reported an issue in the Line app , and They paid me $1000 for it. They fixed it by adding a random number to the user's destination. You can find my name here . A few days ago, I installed Telegram, and I noticed that they have the same feature. I tried to see if I can unmask other users' locations, and I found they have t...