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Josselin Feist

Aave

@Montyly

Working on blockchain security & program analysis. Ex @trailofbits.

Contributing to @Aave security
seceureka.com Joined January 2010
1.1K Following 5.2K Followers 1.6K Posts

Latest posts 5

Josselin Feist @Montyly
There are only a few days left to donate to Echidna

It needs $12k to qualify for the DAO fund and secure its development through 2027

If you use Echidna, share this within your company, tag your boss, and help get it across the finish line :)
If Echidna has ever helped you find a bug, now is your chance to help Echidna: initiatives.thedao.fund/initiative/fun…

Only $12k is needed for it to qualify for the DAO vote
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Josselin Feist @Montyly
After the week we’ve just had, DeFi and blockchain protocols need internal security more than ever

This was just a preview. We are going to see a lot more vulnerabilities and incidents in the coming months

Time to build your in-house security expertise
Most protocols spend a lot on audits and bug bounties but have zero internal security

Launching whohassecurity.com to highlight the ones that do

Having an internal security team should be in every protocol's New Year's resolutions for 2026
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5 replies 3 reposts 48 likes 2.2K views View on X
Josselin Feist @Montyly
Tldr: if you want to find bugs in your codebase, use the latest frontier models

You don’t need a security-specific model outside of a few cases, like doing offensive work (building exploits), working on something sensitive, or running a business that depends on cheap inference
devansh ⚡️ Verified account @0xAsm0d3us Oct 15
At HackerOne, we benchmarked 18 frontier LLMs against 62 fairly complex vulnerabilities

See which model stands where

(link in the thread)
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