Defendor
ArsenWeekly Solana security — exploits, news, research decoded by a real auditor.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 25 | Founded | 6 months ago | Last Issue | 6 days ago |
| Active | |||||
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defendor.substack.comLatest Issues
The Withdraw That Forgot Its Own Reserve
Hey, it’s Arsen.
In today’s menu:
• How one withdrawal check forgot to protect its own account
• Certora just automated the hardest part of formal verification
• A North Korean operative spent a month inside MetaMask’s codebase
• T...
The Patch Anza Had to Ship Blind
Hey, it’s Arsen.
In today’s menu:
• Why Anza had to patch a validator bug without explaining it
• Why a “47% drop” in hack losses is actually a 28% rise
• Why AI agents already move billions in fractions of a cent
• And more…
- *...
The Index That Remembered Too Much
Hey, it’s Arsen.
In today’s menu:
• How a stale cache let one struct hijack another’s storage
• A pre-mainnet chain where whitehats get paid to drain you
• The audit patterns that cost more than the bugs they miss
• And more…
- *...
Deprecated, Not Dead
Hey, it’s Arsen.
In today’s menu:
• $17M from five contracts teams had already stopped watching
• The rounding bug in Kamino that no manual audit could reach
• What 15 security leaders wish they’d built from the start
• And more…...
Trusted By Design
Hey, it’s Arsen.
In today’s menu:
• How a fake RateX program drained $6M from Loopscale’s vaults
• Immunefi’s public security scoreboard — 200+ protocols rated from 0 to 100
• Why AI makes strong auditors faster — and where it still...
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