Moxie Marlinspike (@moxie) — Twitter Score 340 out of 1000

Moxie Marlinspike is a cryptographer and privacy technologist who co-founded Signal Foundation with Brian Acton in 2018, seeding it with an initial $50 million from Acton. Moxie Marlinspike's Twitter Score is 340 out of 1000 (an Excellent rating) as of September 2026, ranking #826 (top 0.5%) among 486,860 tracked accounts.

Moxie Marlinspike also co-founded Whisper Systems and founded Open Whisper Systems, the cryptographic projects that laid the groundwork for what became Signal Foundation. He previously served as CEO of Signal Messenger, stepping down from that role in January 2022 while remaining on the Signal board. Moxie Marlinspike also previously served as a paid technical adviser to MobileCoin from its inception, a relationship that drew attention when Signal introduced a MobileCoin payments feature for UK users in April 2021. At that time, neither he nor Signal held any MobileCoins. MobileCoin subsequently raised $66 million in a Series B round in August 2021, valuing the company at $1.066 billion.

Moxie Marlinspike has accumulated 186,115 followers as of September 2026 on Twitter since 2009 and has published 6,539 posts. He has been mentioned by 380 accounts, with 907 total mentions.

Who follows Moxie Marlinspike on X?

The accounts that follow Moxie Marlinspike include 1,471 founders, 385 angel investors, 307 influencers and 13 VCs. Among them are Brian Armstrong, Chris Dixon, Marc Andreessen, jesse.base.eth, Toly and Elon Musk.