S2 • E26 EthCC Series Apr 15, 2026 22 min

Session and the Fight for Real Private Messaging

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Privacy was never a trend. Privacy is a basic right that every human should have. Chris knows that. With Session, they are making privacy a priority for over 1.7 million users.

Key takeaways

  • Session is a private messaging app running on a DePIN node network on Arbitrum, with 1.7 million monthly active users and hundreds of thousands of downloads a month.
  • The project began as Loki, a Monero fork with a masternode network, which raised $9.2 million in about two weeks in a 2018 ICO.
  • Session never has access to message content, and messages sit on the network for only about two weeks.
  • At recording time, Chris said the Session Foundation was nearly out of runway and appealing for donations after VC funding dried up.
  • The roadmap includes perfect forward secrecy, post-quantum encryption, Session Router, wallets and a Session Pro tier for sustainability.
  • Chris argues everyone has something to hide, and that privacy protects the parts of a person they choose to keep to themselves.

Why private messaging belongs on a trustless network

Recorded at EthCC in Cannes, this Hodl Up episode features Chris McCabe, co-founder of Session. Most crypto projects put something on-chain because they can. Session started from the opposite question: what actually improves when it runs on a decentralized network?

For Chris, secure communication was the obvious answer. The conversation covers his path into crypto, Session's origins as Loki, how it differs from Telegram, the funding crisis the project faced at the time, its technical roadmap and his case for why privacy matters to everyone.

From Mt. Gox to Loki

Down the Bitcoin rabbit hole

Chris first heard about Bitcoin around 2011 or 2012 from a family member and laughed it off. A month later, he spent a long weekend studying it. "I'm the sort of person who goes down rabbit holes very intensely." He bought Bitcoin on Mt. Gox, then drifted away for a few years because explaining it to others took too much effort.

Meetups, Monero and a $9.2 million ICO

In 2017, after leaving a full-time job, Chris took a year to follow his passion. He started crypto meetups in Melbourne, Australia, and gave Monero talks to crowds of a few hundred people. With friends from those meetups, he planned a Monero fork with a masternode network on top.

An early backer put in $300,000. The project, called Loki, ran an ICO in 2018 and raised $9.2 million in about two weeks. It later moved away from the Monero fork and now runs as a DePIN node network on Arbitrum.

The table below summarizes Session's history and status as Chris described them.

MilestoneDetail
OriginMelbourne crypto meetups in 2017
First versionLoki, a Monero fork with a masternode network
ICO2018, $9.2 million raised in about two weeks
TodayDePIN node network on Arbitrum
Users1.7 million monthly active users
GrowthHundreds of thousands of downloads per month

How Session protects messages

Chris said Session's first principle was to ask whether a product gains anything from decentralization. "You don't have to blockchainize everything. The core question we asked ourselves, and that everyone building in crypto should ask, is: what can you actually do with a trustless network?"

He contrasted Session with Telegram, which he said can access users' messages unless they opt into encrypted secret chats. Session is different by design. "If regulators come to us and say, 'Give us this person's data,' we don't even know if that person uses Session. We don't hold that data. It only sits on the network for two weeks, and we never had access to it."

A project on a knife edge

Session grew without paid promotion, earning praise from Proton Mail, WikiLeaks and privacy advocates such as Rob Braxman. Vitalik Buterin also supported the project. Even so, at the time of recording Chris said the foundation was nearly out of runway. "If we don't get more funding in the next one to two weeks, urgently, we'll be scaling back."

He blamed a collapsed VC market, with war and inflation weighing on funding, at the moment privacy demand was rising. Session put out a public call for donations to keep the Session Foundation running, with the goal of becoming self-sustaining within 12 months.

The roadmap if Session survives

Over the next year, Chris wants to add perfect forward secrecy and post-quantum encryption, plus speed and quality-of-life improvements. Session Pro would add premium features like stickers and badges to fund the project. Session Router, the onion routing protocol formerly called Lokinet, would upgrade the network layer. Wallets are also planned, with talks underway with the Kohaku team and other providers, desktop first and mobile later.

Why everyone has something to hide

Chris said education on privacy is hard against strong anti-privacy messaging, and pointed to the EU's repeated Chat Control proposals. He believes many people will only value privacy after losing it. "When it hits, you'll come calling, and we'll have something for you."

He rejected the idea that only criminals need privacy. "You wear clothes for a reason. You don't stay in a hotel with the door open for a reason." Privacy, he said, protects "the things that make you who you are." On whether to keep going, he was clear: "I think it's the only application I can trust, because I know it's not taking my data."

FAQ

Frequently asked questions

What is Session messenger?

Session is a private messaging app that runs on a decentralized DePIN node network on Arbitrum. It has about 1.7 million monthly active users, and its team never has access to message content, which sits on the network for only around two weeks.

How is Session different from Telegram?

Session co-founder Chris McCabe says Telegram can access most user messages unless people opt into secret chats. Session is built so the team never holds message data and cannot tell whether a given person even uses the app.

What was Session originally called?

Session grew out of Loki, a Monero fork with a masternode network that launched through a 2018 ICO and raised $9.2 million in about two weeks. The project later moved away from Monero and now runs on Arbitrum.

What new features is Session planning?

Session plans perfect forward secrecy, post-quantum encryption, the Session Router onion routing upgrade and integrated wallets. A premium Session Pro tier with features like stickers and badges is meant to help the project become financially self-sustaining.

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