🟢 @dfnsHQ now supports HashSphere. HashSphere is @hashgraph's private, permissioned network built with @hedera technology. It’s designed for institutions that need both the control of a private ledger and Hedera-grade performance. ✔️ Permissioned by design, limited to verified institutions ✔️ Data residency, privacy, and internal governance ✔️ EVM compatibility and core Hedera services ✔️ Public interoperability with Hedera mainnet But a permissioned ledger only answers one question for a bank: 𝘸𝘩𝘦𝘳𝘦 𝘥𝘰 𝘮𝘺 𝘵𝘳𝘢𝘯𝘴𝘢𝘤𝘵𝘪𝘰𝘯𝘴 𝘴𝘦𝘵𝘵𝘭𝘦, 𝘱𝘳𝘪𝘷𝘢𝘵𝘦𝘭𝘺 𝘢𝘯𝘥 𝘤𝘰𝘮𝘱𝘭𝘪𝘢𝘯𝘵𝘭𝘺? It doesn't answer the other half of it: 𝘩𝘰𝘸 𝘥𝘰 𝘐 𝘳𝘶𝘯 𝘧𝘪𝘯𝘢𝘯𝘤𝘪𝘢𝘭 𝘱𝘳𝘰𝘥𝘶𝘤𝘵𝘴 𝘰𝘯 𝘪𝘵, 𝘸𝘪𝘵𝘩 𝘵𝘩𝘦 𝘤𝘰𝘯𝘵𝘳𝘰𝘭𝘴 𝘮𝘺 𝘣𝘰𝘢𝘳𝘥, 𝘢𝘶𝘥𝘪𝘵𝘰𝘳𝘴, 𝘢𝘯𝘥 𝘳𝘦𝘨𝘶𝘭𝘢𝘵𝘰𝘳𝘴 𝘦𝘹𝘱𝘦𝘤𝘵? That's the gap DFNS fills. HashSphere is the network a bank settles on. DFNS is the core system that runs on top. Two systems built to institutional standards, meeting where regulated finance is heading. HashSphere joins 60 networks on DFNS, powering 400 fintech and institutional clients globally. 🔗 Learn more: dfns.co/article/hashsphere-t… 📩 Talk to our team: sales@dfns.co

⏱️ @solana transactions expire after ~90 seconds. For retail, that's fine. For institutions, it can break everything. Airgapped signing takes longer. Multi-party approvals take longer. Even a retry queue can blow past the window. The result: institutions couldn't operate Solana the way they operate every other chain. But as of today, they can ✅ @dfnsHQ now supports 𝗗𝘂𝗿𝗮𝗯𝗹𝗲 𝗡𝗼𝗻𝗰𝗲𝘀 on Solana. One single flag at construct time and the transaction never expires. DFNS provisions, pools, reserves, and advances nonce accounts behind the scenes. What this unlocks: ✔️ Offline and airgapped signing through DFNS Offline Signer or IBM OSO ✔️ Approval flows that take minutes, hours, or days ✔️ Resilient retries, no more blockhash aging out mid-process ✔️ Scheduled transactions you can submit at the right moment Live now on Solana mainnet and devnet 🟢 📑 Learn more: dfns.co/article/solana-durab… 🔘 Get started today: app.dfns.io/get-started

Introducing the 𝗚𝗼𝘃𝗲𝗿𝗻𝗮𝗻𝗰𝗲 𝗘𝗻𝗴𝗶𝗻𝗲 👁️ In blockchain infrastructure, every vendor asks you to trust them somewhere. Even with MPC, HSMs, TEEs, SOC 2, and the rest of the modern security stack, there is often one hidden root of trust left inside the provider’s environment: 𝘨𝘰𝘷𝘦𝘳𝘯𝘢𝘯𝘤𝘦. The system that decides who can sign, which policy applies, which approvals are required, and which wallet is in scope still lives in the vendor’s infrastructure. A malicious insider, compromised admin, or supply-chain attack can tamper with that state. And once the state is corrupted, the cryptography downstream will do exactly what it was designed to do and execute the instruction. Even if you never authorized it. That's the gap. And today, we closed it. With the Governance Engine, @dfnsHQ becomes the first vendor to deliver a zero trust architecture end to end for institutions managing digital assets. Deployable on-premises, sovereign, and compliant by design. The customer no longer needs to trust the operator of the platform. Not even DFNS itself. What makes it different: ✔️ Environment-agnostic. It works whether or not you run enclaves. ✔️ Deployable on-prem or in a sovereign cloud, in the jurisdiction you choose. ✔️ It doesn't just prove what happened after the fact. It guarantees control before anything is signed. If anything fails to verify, no signature is produced. The customer holds the veto. Absolute, deterministic, cryptographically enforced. No one else offers that in the market today 🌐 It answers the question your CISO, your auditor, and your regulator are all about to ask in parallel: 𝘸𝘩𝘰 𝘥𝘰 𝘸𝘦 𝘩𝘢𝘷𝘦 𝘵𝘰 𝘵𝘳𝘶𝘴𝘵, 𝘢𝘯𝘥 𝘸𝘩𝘢𝘵 𝘩𝘢𝘱𝘱𝘦𝘯𝘴 𝘪𝘧 𝘵𝘩𝘦𝘺'𝘳𝘦 𝘸𝘳𝘰𝘯𝘨? With the Governance Engine in your perimeter, the answer is: 𝗻𝗼 𝗼𝗻𝗲, 𝗮𝗻𝗱 𝗻𝗼𝘁𝗵𝗶𝗻𝗴 𝗯𝗿𝗲𝗮𝗸𝘀. 📑 Learn more: dfns.co/article/introducing-… 🔗 Get started: dfns.co/governance-engine 📩 Talk to us: sales@dfns.co

Finance needs a new core ⚪ Today, Dfns enters a new chapter. We're no longer a wallet company. We're a 𝗰𝗼𝗿𝗲 𝗯𝗮𝗻𝗸𝗶𝗻𝗴 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝙛𝙤𝙧 𝙙𝙞𝙜𝙞𝙩𝙖𝙡 𝙖𝙨𝙨𝙚𝙩𝙨. Blockchains are now part of how financial institutions move, settle, and control value. 24/7. Globally. They show up as stablecoins, tokenized funds, tokenized deposits, tokenized stocks, onchain settlement, digital collateral, and programmable treasury. And as finance moves onchain, the question changes. It's no longer: "𝘊𝘢𝘯 𝘸𝘦 𝘩𝘰𝘭𝘥 𝘢 𝘬𝘦𝘺? 𝘚𝘪𝘨𝘯 𝘢 𝘵𝘳𝘢𝘯𝘴𝘢𝘤𝘵𝘪𝘰𝘯? 𝘊𝘰𝘯𝘯𝘦𝘤𝘵 𝘵𝘰 𝘢 𝘤𝘩𝘢𝘪𝘯?" It becomes: "𝘊𝘢𝘯 𝘸𝘦 𝘳𝘶𝘯 𝘰𝘯𝘤𝘩𝘢𝘪𝘯 𝘸𝘪𝘵𝘩 𝘵𝘩𝘦 𝘴𝘢𝘮𝘦 𝘤𝘰𝘯𝘵𝘳𝘰𝘭, 𝘨𝘰𝘷𝘦𝘳𝘯𝘢𝘯𝘤𝘦, 𝘢𝘶𝘥𝘪𝘵𝘢𝘣𝘪𝘭𝘪𝘵𝘺, 𝘳𝘦𝘴𝘪𝘭𝘪𝘦𝘯𝘤𝘦, 𝘢𝘯𝘥 𝘳𝘦𝘨𝘶𝘭𝘢𝘵𝘰𝘳𝘺 𝘥𝘪𝘴𝘤𝘪𝘱𝘭𝘪𝘯𝘦 𝘰𝘶𝘳 𝘣𝘰𝘢𝘳𝘥, 𝘰𝘶𝘳 𝘳𝘦𝘨𝘶𝘭𝘢𝘵𝘰𝘳𝘴, 𝘰𝘶𝘳 𝘢𝘶𝘥𝘪𝘵𝘰𝘳𝘴, 𝘢𝘯𝘥 𝘰𝘶𝘳 𝘤𝘭𝘪𝘦𝘯𝘵𝘴 𝘦𝘹𝘱𝘦𝘤𝘵?" That's the operating layer we've been building since 2020. We are the infrastructure layer between a company's existing systems and the blockchains where digital assets now move, settle, and generate value. Trusted by 400 fintechs and institutions around the world. Processing ~1% of global stablecoin volume. Come build with us today. 🔗 Explore the new website: dfns.co 📺 Watch our brand film: youtube.com/watch?v=3kg5mfSH… 📑 Read the full announcement: dfns.co/article/were-not-a-w…

🟢 Besu is live on Dfns today. The "public vs private chain" debate has always been a false binary. Institutional digital asset architecture isn't one or the other. It's both, it’s hybrid. Tokenized deposits and bank-issued stablecoins will live on private permissioned chains (where institutions can control the nodes, the governance, and the data). But those same institutions need a path to public liquidity and public venues for collateral, FX, and settlement. Besu sits cleanly in that picture. Originally built by ConsenSys, contributed to LFDT (formerly known as Hyperledger) in 2019, Besu has been tested by Drex (@BancoCentralBR), Onyx by @jpmorgan, and the @banquedefrance's wholesale CBDC pilots. With BYOC, institutions running Besu internally get: ✔️ Dfns wallets on their Besu chain (MPC, HSM, or offline signers). ✔️ Same policies, workflows, attestation, and entitlements as public chains. ✔️ Same SDK surface used across all 60 Dfns-supported networks. ✔️ One control plane. One routing plane. One audit trail. ⚠️ Honest about limits: Besu's throughput is bounded by its consensus model (QBFT scales poorly past ~25 validators), Tessera privacy is being phased out, and institutions running Besu for sovereignty reasons need to operate the chain themselves (managed services exist but erode the very benefit). For a comprehensive evaluation of alternatives, we suggest exploring additional privacy-focused networks such as @CantonNetwork or @RaylsLabs. 📑 Full post → dfns.co/article/besu-byoc-su… 🔗 Get started → app.dfns.io/get-started 📨 Contact sales → sales@dfns.co

🧊 Introducing 𝗢𝗳𝗳𝗹𝗶𝗻𝗲 𝗦𝗶𝗴𝗻𝗲𝗿 HSM-grade cold key storage, fully integrated into the @dfnsHQ KMS suite. Over the past few years, regulators across Japan, South Korea, Singapore, Hong Kong, Bahrain, the UAE and more have made the same ask: “𝘤𝘶𝘴𝘵𝘰𝘮𝘦𝘳 𝘢𝘴𝘴𝘦𝘵𝘴 𝘮𝘶𝘴𝘵 𝘣𝘦 𝘩𝘦𝘭𝘥 𝘢𝘴 𝘰𝘧𝘧𝘭𝘪𝘯𝘦 𝘬𝘦𝘺𝘴.” Offline Signer is our answer. It offers: ✔ ️ True physical isolation. Keys live inside a certified HSM, zero network connectivity. ✔ ️ Hardware-backed key provenance and attestation across the full lifecycle. ✔ ️ Interchangeable signers with the same orchestration layer. ✔ ️ Full audit trail, signed by the hardware itself. Offline Signer is NOT a consumer phone in airplane mode 📴 Some competitors describe that as "cold storage." ⚠️ Warning note: 🚫 A phone is a general-purpose computing system, not a FIPS-validated cryptographic module 🚫 Airplane mode is a software toggle; radios are still there and it’s (very) easy to turn “on.” 🚫 Modern mobile OS attack surface dwarfs that of a tamper-resistant HSM 🚫 Some regulators tolerate it so far due to pushy incumbents, but it’s a temporary “yes.” Putting sensitive signing keys on a phone with the radios temporarily disabled is a software wallet, not cold storage. It does not satisfy a control that exists to protect users from internet-resident threats. We recommend two paths: → Dfns Offline Signer: the right entry point (cost-efficient, security-grade, fully integrated). → IBM Offline Signing Orchestrator (OSO): the right destination. Fully managed, multi-party, hardened. 🔗 Available now → app.dfns.io 📑 Full post → dfns.co/article/introducing-…

👋 Welcome to @dfnsHQ, @KleeBeard! We're thrilled to announce that Jared has joined Dfns as 𝘊𝘩𝘪𝘦𝘧 𝘙𝘦𝘷𝘦𝘯𝘶𝘦 𝘖𝘧𝘧𝘪𝘤𝘦𝘳. Jared brings over a decade of experience building businesses from zero to scale at the intersection of blockchain, fintech, and institutional financial services. A few highlights from his journey: → At @a16z-backed @Bastion, he led revenue and made them the sole issuer for @sonybank_jp’s stablecoin. → At Vouch Insurance, he built the Web3 insurance practice, led Vouch Horizon, and became Head of Sales. → At @IBM, he founded and scaled Watson Risk & Compliance to multi-millions in sales worldwide. → Led IBM's participation in the Token Taxonomy Initiative, contributed to the Token Taxonomy Act. → Long-time voice as podcast host of Fat Tailed Thoughts. With IBM Digital Asset Haven now live on Dfns and momentum building across stablecoin payments, tokenized deposits, and onchain treasury, Jared joins at exactly the right moment to lead our global revenue organization. Welcome aboard, Jared! Excited to have you lead the way. 📑 Read the full announcement: dfns.co/article/welcome-jare… ℹ️ We’re hiring! jobs.deel.com/dfns

☕ Our Java SDK is now live. Java is still one of the most widely deployed languages in financial services. Core banking, payment, custody systems, compliance engines. Our institutional clients have been asking for a first-class Java SDK to match. It's here ✅ What's in it: ✔️ Full coverage of every Dfns API domain ✔️ Both synchronous and asynchronous clients ✔️ Built-in Ed25519 credential signing, auth, and error handling ✔️ Java 17 , Gradle, MIT licensed ✔️ Open source on GitHub For teams building on Dfns from a JVM backend, the SDK removes the friction of hand-rolling HTTP clients, request signing, and DTO modelling with the same patterns you already know from our TypeScript, Python, and Go SDKs. ⌨️ Repo → github.com/dfns/dfns-sdk-jav… 📑 Blog post → dfns.co/article/java-sdk 🔗 Get started → app.dfns.io/get-started

Hejsan Sverige! 🇸🇪 Our Co-CEO, @christophergdf, will be speaking at the NBC on May 26, hosted by the @nordicblock. He’ll join Staffan Larsson, Chief Architect for Business & Retail Banking Digital Solutions at @SEBGroup, for a discussion on: "𝘞𝘩𝘢𝘵 𝘐𝘯𝘴𝘵𝘪𝘵𝘶𝘵𝘪𝘰𝘯𝘢𝘭 𝘈𝘥𝘰𝘱𝘵𝘪𝘰𝘯 𝘈𝘤𝘵𝘶𝘢𝘭𝘭𝘺 𝘓𝘰𝘰𝘬𝘴 𝘓𝘪𝘬𝘦 𝘪𝘯 2026." Institutional adoption is no longer a theoretical conversation about future use cases. Banks and financial institutions are now moving from pilots to production, with a clear focus on security, governance, compliance, transaction reliability, and operational scale. That is where digital asset infrastructure becomes critical: Wallets, custody, key management, transaction orchestration, stablecoins, tokenization, and onchain services need to work with the same standards institutions expect from core financial systems. We’re looking forward to joining SEB, the Nordic Blockchain Association, and the broader Nordic blockchain ecosystem in Copenhagen. See you there 👋

Welcome to Dfns, Elis Veysalova! ✨ We’re thrilled to announce that Elis has joined @dfnsHQ as our new 𝘛𝘳𝘶𝘴𝘵 & 𝘊𝘰𝘮𝘱𝘭𝘪𝘢𝘯𝘤𝘦 𝘖𝘧𝘧𝘪𝘤𝘦𝘳. Elis brings over 8 years of experience leading governance, risk, and compliance programs for regulated financial entities, and an unusually well-matched dual background in law and information security. Most recently at @Bitpanda, she served as CISO of Bitpanda Enterprise UAE and ISO of Bitpanda Malta. There, she: ✅ Embedded DORA, ISO 27001, SOC 2, and GDPR requirements across the group ✅ Designed the group-wide incident management framework from the ground up. ✅ Led security due diligence for 15 global banking partners (RakBank, Deutsche Bank, and others) ✅ Established Bitpanda’s first AI governance process, aligned with the EU AI Act As Dfns scales across jurisdictions and serves a growing roster of regulated institutional clients, Elis’ combination of legal training, hands-on GRC delivery, and CISO-level operational experience in a regulated crypto custodian is exactly what our clients need from us. Welcome aboard, Elis! 🤝 📑 Read the full announcement: dfns.co/article/welcome-elis…