A campaign advocating for Bitcoin integration into the privacy-focused messaging app Signal has gained traction. Spearheaded by figures like Jack Dorsey, the initiative aims to incorporate Bitcoin payments using the Cashu protocol. Notably, developer Peter Todd supports this initiative, citing Signal’s existing MobileCoin solution as centralized and limited in accessibility. Bitcoin enthusiasts such as Cashu, Calle, and Satoshi Labs co-founder Pavol Rusnak have also joined the campaign, highlighting potential for peer-to-peer transactions with Bitcoin if successful. 70 million monthly active users on Signal could benefit from this integration. However, concerns remain about Bitcoin’s public blockchain potentially compromising user privacy. Critics like José Pedro Sousa argue that alternatives like Monero and Zcash offer enhanced privacy features. Despite the campaign’s momentum, its success remains uncertain given similar applications face challenges in achieving widespread adoption.