New · Middle-grade mystery
Was It Tom?
Four friends. One summer apart. And a message from someone who shouldn’t be able to send it.
by Patrick Sakala
Independent publisher · Part of the Authenticity Alliance
PKI Press publishes books on identity, privacy and accountability online. For security teams and families, for daters and grandparents, and for anyone who has wondered who they’re really talking to.
New · Middle-grade mystery
by Patrick Sakala · See details
Four friends. One summer apart. And a message from someone who shouldn’t be able to send it.
New on the shelf
A mystery for young readers and a guide for the grandparents who worry about them. Both ask the same question: how do you know who’s really there?
New · Middle-grade mystery
Four friends. One summer apart. And a message from someone who shouldn’t be able to send it.
by Patrick Sakala
New · Family guide to the digital world
Who’s watching your grandkids? Not a stranger at the door. The apps in their pocket.
by Nina Lakovic
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Our promise
Amazon won’t tell authors who bought their book, “for privacy,” while it collects and monetizes buyer data itself. We let you decide.
The authors

Founder of Delphi and The Authenticity Institute
More than three decades building secure online spaces, starting with Delphi, the first service to bring the Internet to mass audiences.

Writer and social media strategist
Writes about human connection, digital culture, and staying yourself in a world that wants to own the digital you.

Author of the WIT Series
Works with people all over the world through screens, and writes about working out who is really on the other side.