MetaMask, Phantom, WalletConnect, and Backpack have teamed up with the Security Alliance (SEAL) to launch a global phishing defense network after crypto scammers stole more than $400 million in the first half of 2025, according to blockchain security firm CertiK.
“We’ve joined forces to launch a global phishing defense network that can protect more users across the entire ecosystem,” said the MetaMask team in a tweet on X. SEAL said this is an effort to build a “decentralized immune system for crypto security,” which would allow anyone worldwide to help stop the next major phishing attack before it spreads.
The network connects several top wallets through SEAL’s “verifiable phishing reports” system, announced last week. This system allows security researchers to confirm that malicious sites truly host phishing content, giving wallet providers reliable evidence before issuing warnings. With this setup, user-submitted phishing reports are automatically verified and shared across all participating wallets, triggering real-time alerts without the need for central approval.
“Anyone with a valid report is able to trigger a phishing warning across network participants in real time and without any special permissions,” SEAL stated.
The alliance says this approach will speed up response times and save more users from losing funds to online scams. “We want to bring this data to as many wallets as possible,” SEAL added.
The campaign targets crypto “drainers,” phishing operators who have upgraded their tactics to dodge detection. According to SEAL, these scammers now rotate landing pages quickly when blocklists update, move their hosting offshore, and use cloaking tools to hide from automated scanners.
“Drainers are a constant cat and mouse game,” said Ohm Shah, a security researcher at MetaMask. He noted that working with SEAL helps wallet teams apply research faster, “effectively throwing a wrench at the drainer’s infra.”
Phishing attacks remain the top cause of crypto losses this year, accounting for the largest number of security incidents globally, according to CertiK reports in July . With wallet providers uniting under SEAL, the crypto industry is aiming to make phishing a harder game for scammers to win.