I sat in my Sydney apartment, scrolling through the news feed. A bomb in Sumy. Five dead. Another day in the ongoing Russian aerial campaign. My first instinct wasn’t geopolitical analysis — it was to check my crypto portfolio. That moment of selfish panic haunted me. Then I remembered the summer of 2020, when a yield farming protocol drained my $15,000 savings in 48 hours. The feeling of helplessness was the same. But for the people of Sumy, there was no portfolio to check. Their savings were in Ukrainian hryvnia, evaporating by the day. And somewhere, in that chaos, they turned to stablecoins.
We didn’t design blockchain for this. We designed it for speculative DeFi, for NFT art, for DAOs that argue about treasury management. But in Sumy, and across conflict zones from Kharkiv to Kabul, the technology is being stress-tested in a way no whitepaper ever imagined. This is not a story of idealism. It’s a story of survival, and of the uncomfortable gap between what we preach and what actually works.
The Context: Decentralization as a Survival Reflex
Since February 2022, Ukraine has become the world’s largest real-world experiment in crypto adoption under duress. The numbers are striking: according to Chainalysis, Ukraine ranked second globally in crypto adoption in 2022, behind only Vietnam. But the driver wasn’t a love for smart contracts or a vision of Web3. It was a collapsing banking system, currency controls, and inflation that hit 26% in 2022. The National Bank of Ukraine limited cash withdrawals and foreign currency purchases. People needed a way to store value that wasn’t tied to the state they were at war with.
The obvious choice was USDT — Tether’s stablecoin. Tether runs on multiple blockchains, but predominantly Ethereum, Tron, and now Celo. In theory, it’s a decentralized digital dollar. In practice, the chain of trust is fragile. Tether, a company based in the British Virgin Islands, has the power to freeze addresses. It has complied with law enforcement requests. The truth in blockchain isn’t about the code; it’s about who holds the keys when the state comes knocking. During a conflict, that’s not abstract — it’s life-changing.
Core: The Technical Reality of Stablecoin Survival
Let me share a technical observation from my audit experience. I once spent a weekend reverse-engineering a smart contract that had been exploited during DeFi Summer. The code was elegant. The reentrancy attack that drained it was brutal. But the lesson was that no amount of mathematical perfection could protect against a single point of failure: the admin key. The same applies to stablecoins in a war zone.
When a Ukrainian citizen buys USDT on a peer-to-peer exchange, they are not interacting with a trustless system. They are relying on the exchange’s liquidity, on Tether’s willingness to honor redemptions, and on internet connectivity. In Sumy, where Russian missiles knocked out power grids multiple times, a stablecoin is only as good as the last block finality before the electricity goes out. The interoperability between blockchains becomes a luxury when the real-world infrastructure is under attack.
But there’s a deeper layer. The majority of Ukrainian crypto usage happens on centralized exchanges like Binance and Kuna. These exchanges act as gatekeepers. In 2022, Binance froze accounts of Russian users linked to sanctioned entities. It also restricted transfers from Russia. This is good for sanctions compliance, but it exposes the centralization that crypto was supposed to solve. The very attribute that makes crypto attractive for survival — censorship resistance — is often the first thing sacrificed when regulators demand compliance.
I’ve seen this contradiction play out in my own work. In 2024, I interviewed 20 fintech professionals for my newsletter, Crypto Conversations. One story stuck: a Ukrainian mother who had learned to trade crypto after 2022. She used a local exchange to convert her hryvnia to USDT, stored it on a hardware wallet, and waited. When the exchange was hacked later that year, she lost nothing because she had removed her funds. But she told me, “I don’t trust any of them. Not the bank, not the exchange, not even the internet. I just trust the math.” Her trust was in the blockchain’s immutability — but she relied on a centralized exchange to get in and out. That’s the paradox.
Contrarian: The Ideology Gap
The crypto community has spent two years debating L2 scalability, modular blockchains, and decentralized sequencing. Meanwhile, in Sumy, people are using a stablecoin that is, for all practical purposes, a centralized IOU backed by a company in the Caribbean. The gap between “we’re building a better financial system” and “we’re helping people survive this week” is enormous.
Here’s the contrarian take: The real driver of crypto adoption in conflict zones is not blockchain ideology — it’s local currency inflation forcing people to find survival alternatives. This aligns with what I’ve argued about stablecoins since 2021. In my 40-page thesis on “Code as Law,” I wrote about how economic unfreedom, not technological curiosity, would be the primary catalyst. In Ukraine, it’s proven true. But the crypto industry loves to claim credit. We point to the $57 million in crypto donations to Ukraine’s government and say “see, blockchain for good.” We ignore that the vast majority of transactions are small amounts of USDT used for everyday survival — and that those transactions rely on the very centralized systems we claim to replace.
Moreover, the “decentralized” narrative collapses under scrutiny. Layer2 sequencers are basically single centralized nodes that batch transactions. Decentralized sequencing has been a PowerPoint for two years. In a conflict, if a sequencer goes down — say, due to a data center being bombed — the entire chain stalls. The resilience of a blockchain is only as strong as its most centralized component. For Ethereum L2s, that’s the sequencer. For stablecoins, that’s the issuer. For exchanges, that’s the custody provider. Sumy didn’t need a decentralized sequencer; it needed a financial system that doesn’t vanish when a missile hits.
Takeaway: Building for the Broken World
So where does this leave us? I don’t think crypto is a failure. I think it’s a work in progress — and the war in Ukraine has revealed exactly which parts need priority. We need to build infrastructure that works when governments fail, not just when markets are booming.
That means designing stablecoins that can survive without internet — using mesh networks or SMS-based transactions. It means building DeFi protocols that can operate with minimal block production, maybe even on satellite-based nodes. It means prioritizing censorship resistance over compliance theater, because in a war zone, the ability to move value without permission is not a feature — it’s a lifeline.
I don’t know if the crypto industry is ready for that. I do know that the people of Sumy don’t care about your Layer2 TVL. They care about whether their stablecoin still works when the lights go out. And if we don’t start designing for that reality, we’re just building toys for a bull market. The truth in blockchain isn’t in the code; it’s in the resilience of the network when the world around it burns. That’s the test we haven’t passed yet.
We didn’t start this journey to replace banks with slightly faster banks. We started it to build a system that belongs to the people. In Sumy, the people are waiting. The question is whether we’re building for them — or for ourselves.