SecondFi posted on X that it discovered a security issue with a small portion of Cardano wallets on its platform. It has suspended affected functions and entered maintenance mode while the engineering team works to restore full functionality.
As the first installment of the "Web3 Survival Manual" series, this article systematically explains the essential differences among private keys, seed phrases, and wallet passwords, the nature of asset custody, the distinction between exchange accounts and self-custodial wallets, and the basic principles of hot and cold wallets, providing newcomers with a correct understanding of asset protection.
On April 11, 2025, $BIG (Bigcoin) surpassed a $12 million market cap with $6.11 million in 24-hour trading volume, becoming the hottest project on Abstract chain. The token price surged from $5.6 to $12.629 during the on-chain mining frenzy.
Coinglass data shows Hyperliquid whale positions total $4.27B with nearly equal long and short shares. Whale address 0x082e..88 entered a 5x full-margin long on HYPE, now showing $35.5M unrealized profit.
Solana leads on-chain spot DEX with ~30% market share and spreads nearing CEX levels, driven by its PropAMM architecture. However, in perpetual futures, HyperLiquid commands over 70% of open interest and volume.
Solana captures about 30% of on-chain DEX spot volume with spreads near CEX levels thanks to its PropAMM architecture, yet HyperLiquid dominates the perpetual contract market with over 70% of OI and volume, highlighting a sharp contrast.
According to onchain analytics platform Onchain Lens, a whale address dormant for 7 years has started selling ETH. It has sold 1,100 ETH for approximately $1.9M USDS, realizing $41M in profit, with remaining holdings worth about $44.86M.
An investigation by The Wall Street Journal reveals that Polymarket systematically hired social media creators to film fake trading videos on counterfeit websites, with approximately $1.9 million in bets shown across 1,105 videos being entirely fabricated. The platform, banned from serving U.S. users since 2022, directed its marketing at American audiences and signed a multi-million dollar deal with influencer Adin Ross, with at least 19 promoted videos discussing insider trading. The CEO's previous denial of insider trading allegations is now contradicted, as regulatory and legal pressures mount.
