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A breach alert may indicate that an email address or associated data appeared in a known incident. It does not necessarily mean an exchange account or wallet was accessed, but it is a prompt to secure reused credentials and recovery channels.

Secure the email account and reused passwords

Change reused passwords from the official service, enable a phishing-resistant second factor where possible, review active sessions and forwarding rules, and secure the email provider’s recovery options.

Change any password that was reused

Unique passwords stop a breach at one site from being used as a login elsewhere.

Check exchange access through the official app

Visit the exchange using a saved or independently verified address, inspect login history and API keys, revoke unknown sessions or credentials, and contact support through official channels if you see suspicious activity. Never share a seed phrase or one-time code with a caller or message.

Never disclose one-time codes or recovery phrases

Legitimate support should not need a wallet seed phrase or authentication code.

Sources

  1. Have I Been Pwned — Check an email address
  2. CISA — Use strong passwords