Counterfeit wire instructions are a growing threat in real estate transactions, where fraudsters alter wire instructions to steal funds. This scheme involves gaining access to legitimate instructions, modifying bank account details, and sending the altered instructions to unsuspecting parties. The consequences can be severe, including financial losses and reputational damage. The text emphasizes the importance of verification using secure channels, multi-factor authentication, and education to mitigate this risk. Protective measures include independently verifying instructions, using secure communication, and double-checking account details before transferring funds.