http://thebosh.com/archives/2005/04/microsoft_sues.php
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Microsoft has filed 117 lawsuits in hopes of uncovering some of the largest phishing operators. In phishing scams, the Internet-based communications often purport to be from legitimate organizations,
Once a federal judge gives consent for the lawsuits to go forward, the company can subpoena the Internet service providers from which the phishing scams originated in an attempt to force the ISPs to reveal the identities of the account holders