Jacob Hoffman-Andrews

Senior Staff Technologist

Jacob is a lead developer on Let's Encrypt, the free and automated Certificate Authority. He also works on EFF's Encrypt the Web initiative and is a maintainer on the HTTPS Everywhere browser extension.

Prior to working at EFF, Jacob was on Twitter's anti-spam and security teams. One the security team, he implemented HTTPS-by-default with forward secrecy, key pinning, HSTS, and CSP. On anti-spam, he deployed new machine-learned models to detect and block spam in realtime.  Before Twitter, he worked at Google, variously on the maps, transit, and shopping teams.

Stay in Touch

NSA Spying

EFF is leading the fight against the NSA's illegal mass surveillance program. Learn more about what the program is, how it works, and what you can do.

Follow EFF

Congress is considering stripping away crucial online privacy protections. Tell them not to. https://act.eff.org/action/te...

Feb 23 @ 4:21pm

Strong leadership by @Jasoninthehouse & @RepCummings in calling for warrants for cell-site simulators. https://www.eff.org/deeplinks...

Feb 23 @ 3:04pm

Looking for ways to protect your privacy and security online? Start here. https://ssd.eff.org/en/playli...

Feb 23 @ 2:42pm
JavaScript license information