Sign in with a wallet
Choose a wallet. You will be asked to sign a message, not to send a transaction: it costs nothing and moves nothing. The message names this site, accounts.cryptoopsec.com; if a wallet shows a different domain, stop.
Ethereum and EVM
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Solana
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No wallet listed?
On a phone, open this page inside your wallet app's browser (MetaMask, Rabby, Phantom, Solflare and Backpack all have one). On a computer, install a wallet extension and reload. Use a hot or fresh wallet for signing in; nothing here needs your main holdings.