Mike Leffer @mikeleffer
President @spearbit / @cantinaxyz | Investor @ Riptide Ventures riptide.vc Baltimore, MD Joined January 2019-
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Looking for a Triager to Join @cantinaxyz Please read requirements: Location, skills. If you are a good fit or know someone, Link to apply below:
$5,000,000 on the line. The fastest-growing LST in the space just launched the largest bug bounty ever seen on @HyperliquidX. @kinetiq_xyz just keeps breaking records, and weāre here for it šŖ
Day in the Life of a Bug Bounty Platform 1. Receive an AI-generated report. 2. Triage in minutes and mark as spam. 3. Get emails on generic addresses starting with "ChatGPT said: ...."! The only way to fight AI is with more AIāwe can already detect invalid findings at scale!
On August 25th, a @cantinaxyz researcher reported a critical vulnerability in Panopticās logic that could have enabled attackers to drain funds from PanopticPools by spoofing position lists. We acted to safeguard funds. All funds are safe and will be available for reclaimingā¦
Big news: Weāre excited to welcome @cantinaxyz as the newest partner of the Ascend RWA Startup Accelerator! Together, weāre supporting the next wave of founders building institutional-grade Real-World Asset (RWA) projects.
Continuous security assessments are a core part of our commitment to transparency and trust. Huge thanks to the team at @cantinaxyz for their thorough V3 audit. Their deep dive into our vault mechanics and deployment integrity is another core step in ensuring our infrastructureā¦
Continuous security assessments are a core part of our commitment to transparency and trust. Huge thanks to the team at @cantinaxyz for their thorough V3 audit. Their deep dive into our vault mechanics and deployment integrity is another core step in ensuring our infrastructureā¦
When incidents strike, most damage happens before anyone can act. We've built a system to provide structure before a crisis - and precision if one unfolds. If youāre responsible for capital or custody, Cantina Incident Command is designed for you.
The first-of-its-kind Summit Jailbreak Hackathon, in collaboration with @googlecloud, @SonicLabs, and @DoraHacks, was a tremendous success, providing valuable insights into AI security. Here's what we learned while stress-testing @GeminiApp's capabilities.
Bounty payouts continue on Cantina: @Jiri123_eth has earned $75,000 for his latest contribution. Cantina engagements demand in-depth protocol understanding, advanced reversing, and the ability to navigate complex systems. Jiri consistently delivers across all fronts.
Cantina currently supports over $34M in active bug bounty rewards. To date, $11.2M in payouts has been distributed to top security researchers across live protocols. Details below.
Cantina has joined the @circle Alliance, standing alongside industry leaders to advance secure, scalable infrastructure for financial services and blockchain organizations. Our mission: institutional-grade security for the most important code. Link below.
The final steps before Morpho Vaults V2 launches $200k security competition now live on @cantinaxyz Learn how to take part š
The final steps before Morpho Vaults V2 launches $200k security competition now live on @cantinaxyz Learn how to take part š
So excited to announce @coinbase 's $5,000,000 bug bounty hosted only on @cantinaxyz / @spearbit !
So excited to announce @coinbase 's $5,000,000 bug bounty hosted only on @cantinaxyz / @spearbit !
Cantina paid out more in security competitions than everyone else combined in 2025. The data doesn't lie. But in scaling this, we've realized the competition model as we know it breaks under high participation. Judging times get longer, escalations exponentially increase, andā¦
Cantina paid out more in security competitions than everyone else combined in 2025. The data doesn't lie. But in scaling this, we've realized the competition model as we know it breaks under high participation. Judging times get longer, escalations exponentially increase, andā¦
So excited to see @aave (the largest DeFi protocol in the world) and @Aptos launching this impressive partnership and security initiative with @cantinaxyz !
So excited to see @aave (the largest DeFi protocol in the world) and @Aptos launching this impressive partnership and security initiative with @cantinaxyz !
Cantina Summit 2025 x.com/i/broadcasts/1ā¦
We are excited to help onboard next $2 Trillion on chain!
We are excited to help onboard next $2 Trillion on chain!
Introducing Cantina Incident Response. When security breaks down, outcomes are determined by how quickly and clearly an organization responds. This system was built for those moments.
Brandon Brooks @OfficialBBrooks
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pashov @pashovkrum
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Christian Seifert @cseifert
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Forta š° @FortaNetwork
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Moise @moise__
2K Followers 709 Following create things that people love šš„¾ @spearbitdao @dnmlikedenim @inconversationpod host
Gale Wilkinson @VITAL... @galeforceVC
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Spearbit @spearbit
14K Followers 33 Following Industry Leading Web3 Security. Request a security review here ā” https://t.co/gqs2f17Yhd
Christopher Perkins ļæ½... @perkinscr97
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Moein Noori @Moein_Noori1
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Mustapha @musty_01_
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0xDamian @damnsec1
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j3x @4mj3x
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Bluedragon š®š³ @shibi_kishore
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Sam(š , š®š³) @RitikkAgarwalll
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Vijay @thopate_vijay
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Dan š” | š Devco... @0xDanWeb3
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Hacpug @Hacpug_
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MichaeliaMansfield @iegeC47seT8iQ
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Steven @StevenWuzz
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ššØš©š”š² @Sophy_Sunset_
43 Followers 1K Following Cat mom and can be your baby š Maryland made with a taste for fun š The fun starts at my FREE link below š¶ļøā¬ļø
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šš¢šš² @botdidy
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Majid Salehi @pwnforce
196 Followers 1K Following Senior Research Scientist @Nokia @BellLabs | Ph.D. CS @DistriNet @KU_Leuven | ZKP, Blockchain Security Researcher
$$god_Speed @0xgod_Speed
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Alexis Ohanian š½ @alexisohanian
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Austen Allred @Austen
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Lolita Taub @lolitataub
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Turner Novak šš§¢ @TurnerNovak
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VCs Congratulating Th... @VCBrags
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Garry Tan @garrytan
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Spearbit @spearbit
14K Followers 33 Following Industry Leading Web3 Security. Request a security review here ā” https://t.co/gqs2f17Yhd
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488 Followers 229 Following Keeping the Security Researchers happy @cantinaxyz @SpearbitDAO DM to learn how you can join the Cantina Fellowship Team!
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485 Followers 29 Following Spearbit's number one AI Agent DM for autist
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Cantina šŖ @cantinaxyz
17K Followers 2 Following Securing the world's most important code alongside @spearbit. Explore our security solutions @ https://t.co/UGMSesXryV
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