For those looking for a better way to figure out just who a site is sharing data with, Marotta Wurgler recommends PrivacyChoice.org, which tracks terms of service on individual sites and summarizes their data-sharing schemes.

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Nasdaq had said that its document sharing service, Directors Desk, was compromised but no data or documents were stolen, but the involvement of the National Security Agency in the investigation suggests that the attack on Nasdaq may have been more severe or sophisticated than previously thought.

FORBES: Intelligence Agencies Interested In Nasdaq Cyber Attack