MONDAY, FEB23
1. Traveling bitcoiner security, 2. Lightspark and Coinbase, 3. FIBRE network, 4. Persona is watching you
Supported by Proto and Bitkey - a part of the Bitcoin ecosystem at Block, Inc.
1. traveling
Silent.Link offers Bitcoin-paid eSIM mobile data and SMS services without collecting user information, eliminating SIM-swap attack vectors and automating international roaming for privacy-focused travelers. Founded during 2020 lockdowns, the company uses BTCPay Server infrastructure to accept Bitcoin payments while providing authentication through backup codes rather than personal identity verification. According to a founding team member, "not even the local data carrier knows your phone number," and the service has received "zero requests for user information" from governments since launch. Users authenticate through a secret link backed up like Bitcoin seed phrases, replacing traditional identity-linked phone accounts that integrate with credit scoring systems in many jurisdictions. The eSIM-only model enables automatic connection to local networks across countries without roaming fees or carrier intervention, while reportedly bypassing state firewalls including China's Great Firewall and allowing WhatsApp usage in Dubai despite VoIP restrictions. Notably, Silent.Link prices have declined 20 percent in 2026, supports incoming SMS for two-factor authentication but excludes outgoing texts and voice calls, and remains self-funded and profitable while offering privacy services to traveling bitcoiners.
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Coinbase integrated Bitcoin Lightning Network support through Lightspark's managed node infrastructure, achieving 3.4-second average settlement times while maintaining full custody control over private keys. Impressively, deployment went live in under two months using a phased rollout across product, engineering, infrastructure, and compliance teams, with Lightspark handling operational complexity including channel liquidity management, transaction routing optimization, and high-availability node clusters with built-in redundancy. According to Chief Business Officer Shan Aggarwal, the partnership aims to "eliminate payment barriers and enable faster and cheaper Bitcoin transactions" for Coinbase's user base. Lightspark designed a custom security architecture where Coinbase retains complete control of key signing operations while benefiting from Lightspark's routing and liquidity services, avoiding the capital deployment burden of self-managed Lightning channels. The system processes Lightning transactions without disrupting Coinbase's existing infrastructure or adding user friction, with customers experiencing immediate settlement and reduced fees compared to on-chain Bitcoin transfers. Within a year of launch, Lightspark processes 15 percent of all Bitcoin transactions, demonstrating Lightning's scaling trajectory on major exchange platforms and enabling Bitcoin's utility beyond store-of-value applications into instant payment infrastructure.
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Localhost Research has relaunched the FIBRE network, a fast-relay protocol designed to counter mining centralization as client-side block templating gains adoption. According to the team's announcement, FIBRE uses UDP and Forward Error Correction to enable block propagation "near the speed of light bound in fiber," addressing latency advantages currently held by large mining operations. The project, led by researchers w0xlt and Justin with guidance from Matt Corallo and Greg Maxwell, has deployed six public nodes across New York, Seattle, Tokyo, Beijing, Frankfurt, and London. The revival responds to a structural vulnerability: while current stale block rates appear low, that metric is "artificially suppressed by the very centralization it obscures" when pools drawing templates from a single source bypass network latency. The team warns that increased adoption of Stratum v2 and similar templating tools could raise stale rates without appropriate relay infrastructure, creating disincentives for miner autonomy. The network entered beta testing in early 2025, continuing work Corallo first deployed between 2016 and 2017 before maintenance burdens halted development.
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Security researchers discovered that Persona, the biometric identity verification provider backed by Peter Thiel and used by Discord, OpenAI, and Roblox, exposed 2,456 files on a FedRAMP-authorized government server revealing surveillance capabilities far beyond age verification. According to researcher Celeste and collaborators in The Rage, the exposed code shows Persona performs 269 distinct verification checks including facial recognition against watchlists, screening across 14 categories of adverse media from terrorism to espionage, and direct integration for filing suspicious activity reports with US and Canadian federal agencies. The researchers found what they describe as "a FedRAMP-authorized parallel implementation" at withpersona-gov.com alongside an OpenAI-specific database instance, with the platform analyzing IP addresses, device fingerprints, government IDs, and even selfie backgrounds retained for three years. Celeste notes that "you're making the internet less safe, not safer," as the system flags users as suspicious entities based on facial analysis while non-technical users "won't be able to bypass these" yet bad actors "will always find ways to exploit your system." Discord announced Monday it would not proceed with Persona for identity verification following the disclosure.
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