
Aryn Castle
VP of Operations at Immunefi
Aryn Castle is Vice President of Operations at Immunefi and an investor in FOG Ventures. He graduated from the University of Miami.
Current Roles
News Mentions
Immunefi to absorb Code4rena bug bounty customers after shutdown decision
Immunefi: Cryptocurrencies that were hacked dropped an average of 61% within six months
Immunefi: Nearly 80% of crypto projects hacked failed to fully recover, with operational and trust collapse as the main reasons
Crypto Hacks Surged to $92.5M in April 2025: Immunefi
Crypto industry losses reach $92 million in April due to DeFi exploits: Immunefi
Crypto industry set for worst quarter for hacks in history with $1.6 billion in losses: Immunefi
Spectral Launches a $100,000 Bug Bounty Program on Immunefi to Secure their Onchain Agent Economy
Berachain Partners with Immunefi to Launch $250,000 Bug Bounty Program
Hedera Launches a New Bug Bounty Program on Immunefi to Secure its Proof-of-Stake Network
USDT0 Launches a $6M Bug Bounty Program on Immunefi to Strengthen Cross-Chain Security
