BloomTrading Telegram Bot Users Lose Approximately $954,000 in Solana Wallet Drain
What happened
An unauthorized actor drained 9,408 SOL valued at approximately $954,000 across 48 wallets belonging to nine BloomTrading users in 94 seconds on October 26, 2026.
The Context
- Custodial bots present architectural single points of failure, as platforms like BloomTrading generate and store user private keys server-side to facilitate rapid automated trades on networks like Solana.
- The exploit was highly targeted, siphoning native SOL via the wallets' own private keys while leaving USDC intact, hitting active accounts as well as dormant wallets unused since mid-2025.
- Remediation is currently private and self-funded, with BloomTrading pausing select platform modules, investigating potential third-party code execution flaws, and pledging direct reimbursements to new user wallets.
The Number
— the operational window it took for an automated exploit to clear 48 distinct wallets, proving that custodial execution layers leave zero reaction time when core infrastructure is compromised.
Takeaway
Expect trading bot platforms to face mounting pressure to shift from custodial key management to non-custodial delegated signing architectures.
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