Twitter added its “tip jar” feature to a select group of users on May 8. This function allows Twitter users to support others by sending money through different payment methods such as PayPal, CashApp, and Venmo. The tip jar option is only available using mobile phones, and to content creators such as artists, journalists, experts, and non-profits. However, security expert Rachel Tobac pointed out a privacy concern about the feature. Receivers can see the senders’ postal addresses when sending money using PayPal. Twitter product lead Kayvon Beykpour said that they cannot control how PayPal handles personal information. PayPal then recommended using the “friends and family” option to hide personal details instead of the “goods and services” option because it shows shipping information. The tip jar function will soon be available to more, but users are worried about its privacy issues.