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Jon Callas

Jon Callas

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2026-07-13

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At a glance
Category
Tech
Country
USA
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Who is this?

Jon Callas is an American computer security expert, software engineer, user experience designer, and technologist who is the co-founder and former CTO of the global encrypted communications service Silent Circle. He has held major positions at Digital Equipment Corporation, Apple, PGP, and Entrust, and is considered "one of the most respected and well-known names in the mobile security industry." Callas is credited with creating several Internet Engineering Task Force (IETF) standards, including

What happened recently

News✓ Trusted
9/4/2020

Former Apple Employee Jon Callas Joins EFF as Technology Projects Director

Source
News✓ Trusted
9/3/2020

Cryptographer and Entrepreneur Jon Callas Joins EFF as Technology Projects Director

Source
News✓ Trusted
2/19/2020

Jon Callas: Encryption is a technology that rearranges power

Source
News✓ Trusted
12/4/2018

Key Apple security expert Jon Callas leaves to take job with ACLU

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bing-news✓ Trusted
11/9/2011

Jon Callas reflects: Steve Jobs, the man, the maniac

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