Contacts
Private address book
Privacy You Can Verify.
Ivy Cyber publishes and supports PrivacySafe: encrypted chat, calls, and storage for the things you actually need to keep private. Start free without a phone number. We also offer hardened phones and practical security training.
PrivacySafe apps
Chat
Encrypted chat and calls
Treasure
Passwords, passports, records
Choose Your PrivacySafe Identity.
Gold and Platinum use the same PrivacySafe apps and zero-knowledge encryption. Every plan allows unlimited devices. What changes is your address, storage, and support.
Gold
Domain: @privacysafe.me
$25$12 / month
$120 a yearSave $24
- Short, memorable PrivacySafe address
- 50 GB encrypted storage
- Chat, calls, Contacts, Treasure, and Storage
- Unlimited devices
- Email support within 2 business days
Platinum
Domain: @privacysafe.gg
$50$24 / month
$260 a yearSave $28
- Our shortest PrivacySafe addresses
- 500 GB encrypted storage
- Everything in Gold, plus early access to new apps
- Unlimited devices
- Priority support within 1 business day
Enterprise
Domain: your-domain.com
$250 consultation
- Paid up front and credited toward your deployment
- Scoping session covering your infrastructure, threat model, and compliance needs
- PrivacySafe deployed on your own domain
- Self-hosted or hosted by Ivy Cyber
- Written deployment plan with a detailed quote
Silver tier is free. Get a @privacysafe.xyz identity without a phone number. Gold and Platinum give you a premium address, more storage, and more support. The apps and encryption technology are the same.
Prices are in USD and exclude applicable sales tax or VAT.
Surveillance Self-Defense Masterclass.
Sean O'Brien, a cybersecurity researcher at Yale Law School, and John Kiriakou, a former CIA counterterrorism officer, have taught this material to exclusive, small cohorts over the years. This updated version puts the full course online so you can work through it on your own schedule.
From Previous Classes
Twelve Weeks, on Your Schedule
Returning October 2026. The full twelve-week curriculum is coming back as an on-demand video course, with material from the former Hidden Trackers class folded in.
The course is asynchronous. There are no required live sessions. Watch the videos, read the material, do the exercises, and move at your own pace.
$150
$100
What the Course Covers
- Threat modeling for people who are not spies, and for people who are
- Phones, operating systems, and what leaves your device
- Hidden trackers: who is watching an ordinary app and how to see it
- Encrypted communication, metadata, and what legal process can reveal
- Passwords, recovery phrases, and the habits that keep them useful
- Travel, borders, and preparing a device before you carry it
If You Took the Class Before
If you took the class before, you do not have to buy it again. When the new course opens, you will get:
- Free live classes. Join the live sessions at no cost alongside the recorded course.
- A free Platinum VIP identity. Account at @privacysafe.gg when the course opens.
Write to us from the email address you used to enroll, and we will match it to the class roster.
Hardware, Ready to Go.
We configure devices before they ship, so you can start with strong security from day one.
PrivacySafe Phones
Our smartphones ship with PrivacySafe installed and either CalyxOS or GrapheneOS, depending on what you choose. Arrives ready to use.
Continental USA shipping only.
Challenge Coin
An exclusive John Kiriakou challenge coin made for class participants and supporters.
Produced in limited runs, continental USA shipping only.
PrivacySafe Key
A portable USB drive with the PrivacySafe apps ready to run. Carry it while traveling, use it on a temporary system, or give one to a teammate.
Continental USA shipping only.
Who You're Working With.
Our team spans four continents, with engineering partners in Canada and the European Union.
Sean O'Brien
Founder & CEOCybersecurity researcher at Yale Law SchoolSean is an Associate Research Scholar at Yale Law School and Director of the Cybersecurity and Computer Science Programs at Bay Path University. He founded Yale Privacy Lab and serves as Deputy Director of the Free Software Foundation and President of PrivacySafe Foundation.
Sheree Ip
Director of Strategy & InnovationBlockchain educator at Curtin Law SchoolSheree oversees strategic partnerships at Ivy Cyber, including our work with teams in Canada and the European Union, as well as the Solana Superteam in Australia. She teaches blockchain and internet law at Curtin Law School and serves as Vice President of PrivacySafe Foundation.
John Kiriakou
Security AdvisorFormer CIA counterterrorism officerJohn advises Ivy Cyber on operational security and threat awareness and teaches alongside Sean in the Surveillance Self-Defense Masterclass. He spent 14 years in the top ranks of the CIA and was the first U.S. official to confirm CIA torture of detainees. John is an in-demand speaker and teacher around the globe.
Our Mission
At Ivy Cyber, we believe everyone deserves privacy, security, and the freedom to speak and share: without fear. Our agile team of innovators delivers the tools you need to navigate the challenges of life online and away from the keyboard. Through secure software and hardware under our PrivacySafe brand, as well as expert-led training and education, we empower people and organizations to not only survive, but to thrive in a connected world.
Development Team
PrivacySafe engineering is led by Mikalai Birukou, our Director of Technology. He leads our 3NWeb reference implementation and the open specifications hosted at IEEE SA Open, drawing on years of work in network infrastructure and systems architecture.
We have an amazing team of talented developers working on our products, including Vitaly Kashkel, Aliaxandr Smirnou, Ezekiel de los Santos, and Julius Medalla.
Engineering partners: 3NSoft in Canada and Kuip Limited in the European Union.
Get in Touch
Questions about PrivacySafe plans, enterprise deployment, the masterclass, or an order? A person reads every message.
- Ivy Cyber LLC
1204 Main St Num 1197
Branford, CT 06405-3787, USA
The PrivacySafe Ecosystem
Ivy Cyber offers PrivacySafe products and services in the USA and has partnerships with 3NSoft in Canada and Kuip Limited in the European Union. Enterprise services and consulting are available at ivycyber.com.
PrivacySafe Foundation is a 501(c)(3) nonprofit public charity that supports the development of the PrivacySafe applications, along with the components they rely upon: 3NWeb protocols, filesystem, documentation, and reference implementations.
Donations to PrivacySafe Foundation support education, research, documentation, and public code. Purchases from Ivy Cyber support PrivacySafe products, services, hosting, and technical support. Together, we're building a better web.