Bitcoin Mempool Congestion Surges Amid Coldcard Exploit
Bitcoin's mempool transactions have hit a 1-year high of 31,727 as users shifted funds in response to a recent exploit on Coldcard. The surge in activity has led to ongoing debates about self-custody and its viability. Mempool congestion typically signals network strain, resulting in longer confirmation times and higher priority fees.
Ethereum co-founder Vitalik Buterin updated the network's roadmap to prioritize quantum-computing readiness and user privacy. This strategic adjustment focuses on safeguarding the blockchain against future cryptographic threats while enhancing base-layer transaction shielding and zero-knowledge proof scalability.
The global remittance company MoneyGram expanded its crypto cash 'Ramps' service to Solana, enabling two-way cash-crypto conversions via a single API for crypto wallets. Meanwhile, Harmony suffered an exploit resulting in the unauthorized minting of roughly 4 billion ONE tokens (about 26% of the pre-incident supply).
A critical vulnerability affecting Bitcoin Lightning payment servers resulted in fund theft from multiple merchants. The attack targeted nodes running LND software behind BTCPay Server, where attackers exploited a flaw that allowed unauthenticated remote access to .macaroon credential files.