Async Payjoin is the best hope for strong privacy in Bitcoin. Modeled after HTTPS, which enabled secure payments for the web, the Payjoin foundation has been quietly building up this privacy toolkit, which must be adopted by a large number of Bitcoin wallets, to deliver privacy at scale.

As Bitcoin enters 2026 with sustained institutional adoption and price stability following the 2024-2025 bull run, self-custody remains a cornerstone of the asset’s sovereignty promise. Yet the landscape has evolved significantly.

Brink, the Bitcoin development organization, recently funded the first ever independent security audit of Bitcoin Core conducted by a third party (the full report is available here). The audit was conducted by Quarkslab, a software security firm, with the help of the Open Source Technology Improvement Fund (OSTIF) and collaboration with Bitcoin Core developers Niklas Gögge, from Brink, and Antoine Poinsot, from Chaincode Labs.

Samourai Wallet was a Bitcoin privacy wallet developed by Keonne Rodriguez and William Lonergan Hill. It included specialized privacy tools that mixed the coins of wallet users in ways that required no third-party custody. The service’s servers helped coordinate “mixing” — methods to conceal the origin of coins and offer users some degree of forward privacy.

In a move that could shape corporate Bitcoin adoption, index provider MSCI is set to decide whether to exclude companies holding significant Bitcoin reserves from its global benchmarks. The outcome, due January 15, may influence billions in forced selling and set precedents for how Wall Street views Bitcoin as a treasury asset.

Stablecoins are ultimately capped by a ceiling that Bitcoin is positioned to smash right through. They are not an existential threat to Bitcoin.