June 7, 2025 — Alex Protocol, a DeFi platform built on the Stacks blockchain, has been hit with its second major exploit in just over a month, losing $8.3 million in crypto assets on June 6 due to a smart contract vulnerability.
🧨 What Was Stolen:
8.4 million STX (~$5.5M)
21.85 sBTC
2.8 WBTC (~$295K)
USDC & USDT worth ~$149.8K
The attack exploited a flaw in Alex’s self-listing verification logic, allowing the hacker to drain multiple liquidity pools in one coordinated strike.
🕵️ A Troubling Pattern
This follows a $4.3M hack in May 2024, which targeted Alex’s cross-chain bridge. That breach was suspected to involve the Lazarus Group, a North Korean-linked hacking syndicate. In total, $12.6M has been lost in two incidents over five weeks.
🛠️ Reimbursement Plan
Alex Lab Foundation has pledged to fully reimburse affected users:
Payouts in USDC
Based on market rates during the attack window (10:00–14:00 UTC, June 6)
Claim forms sent via onchain notifications by June 8
Users must respond by June 10
Payments expected within 7 days of verification
🤐 Still No Post-Mortem
Despite the reimbursement promise, no technical post-mortem has been released yet. The silence has frustrated users, and confidence in the project is hanging by a thread.
💬 Community Sentiment: Cautious and Tired
Two hacks, over $12M lost, and ongoing transparency issues have left many in the Stacks and DeFi community wondering: Can Alex bounce back?
Even with refunds, trust is harder to recover than tokens.
Stay safe, and always DYOR.
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