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Cassio Goldschmidt

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titleconferencedate
Bug Bounty Programs: Successfully Controlling Complexity and Perpetual TemptationAppSec USA 20172017-09-19
Start a program start private with vetted researchers (HackerOne/Bugcrowd can supply invite lists), define tight scope and SLAs, and use a platform or managed…
Talk on
Dissecting Bitcoin SecurityOWASP AppSec California 20162016-01-25
Explains concrete mechanics: private keys are 256‑bit numbers and public keys use secp256k1 ECDSA, addresses derive via SHA‑256 then RIPEMD‑160 and Base58, and…
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Proactively defending your businessAppSec California 20152015-01-26
Describes concrete failures and fixes: real incidents (Heartbleed, GoToFail, TurkTrust and the French CA), measurable user behavior (30–70% click through…
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