~/talk

The State of Blockchain Security - 2023 Edition

Talkat BSidesSF 2023 · 2023-04-22..04-23· [security, defi]
slides:none on file

Annual numbers show about $3.7B stolen in 2022 with per-incident losses often ~$12M; major incidents include a $586M Binance Smart Chain node exploit, $325M Wormhole bridge theft, and $197M Euler lending exploit. Attack techniques: approval phishing and zero-transfer phishing drain wallets, bridges fail on proof verification, and MEV bots plus a mev-boost bug leak blocks to steal ~$25M. Some funds return via white‑hat interventions. Builds needed: wallet firewalls, realtime monitoring, faster audits, and incident response services.

AI-written summary · about

  1. 0:00Introduction to crypto security
  2. 1:32Economic impact and trends
  3. 4:33Cryptocurrency ecosystem model
  4. 6:43User and wallet security
  5. 11:28Exchange security
  6. 15:47Protocol and node security
  7. 22:07DeFi security landscape
  8. 41:07Career and community resources
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