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.

VP of Operations

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