Matthew Rosenfeld

Matthew Rosenfeld, also known as Moxie Marlinspike, is a prominent cybersecurity expert and co-founder of Signal, a widely respected encrypted messaging service launched in its current form in 2014. With a focus on privacy and security, Rosenfeld has championed end-to-end encryption technology, which ensures that messages are only readable by the sender and receiver. His work has made Signal a preferred platform for journalists, activists, and individuals seeking to protect their communications from surveillance.