Venmo: how the payment app exposes our private lives
Cindy Hwang

Anyone can track a Venmo user's purchase history and glean a detailed profile - including their drug deals, eating habits and arguments - because the payment app lacks default privacy protections. This was the finding of a Berlin-based researcher, Hang Do Thi Duc, who analysed the more than 200 million public Venmo transactions made in 2017.