https://biubiu.tools/blog Product updates, guides, and notes from the BiuBiu Tools team. en Wed, 24 Jun 2026 00:00:00 GMT https://biubiu.tools/blog/why-revoke-token-approvals https://biubiu.tools/blog/why-revoke-token-approvals Wed, 24 Jun 2026 00:00:00 GMT Token approvals don't expire. The dapp you used once last year may still be able to move your funds — here's why that matters and how to clean it up. securityguideapprovals https://biubiu.tools/blog/welcome-to-biubiu-tools https://biubiu.tools/blog/welcome-to-biubiu-tools Sat, 20 Jun 2026 00:00:00 GMT What this toolkit is, why it exists, and what we'll write about here — a free, privacy-first set of utilities for everyday on-chain work. announcementproduct