Bitcoin slides to $83k as altcoins reverse Friday rally
Bitcoin fell 1.7% to $83,000, pulling the CoinDesk 100 down 2.6% as the biggest gainers on Friday retraced. Oil prices climbed back above $100 a barrel, adding to a mixed market backdrop.

BTC Radar
Bitcoin fell 1.7% to $83,000, pulling the CoinDesk 100 down 2.6% as the biggest gainers on Friday retraced. Oil prices climbed back above $100 a barrel, adding to a mixed market backdrop.

Researchers unveiled a cost‑effective quantum‑resistant algorithm, a privacy design that incorporates quantum‑safe techniques, and a custody playbook outlining best practices. These moves signal a shift from theory to practical solutions, even as the feared "Q‑Day" remains hypothetical.

THORChain declined Bitget’s demand to block addresses flagged as hackers, even after one such address completed an XRP‑to‑BTC swap. Meanwhile, OKX’s Star Xu criticized THORChain’s comparison with Bitcoin’s security model.
