The Federal Reserve Bank of New York, just three blocks from the World Trade Center, remained open throughout the day, though it shifted its electronic funds transfer and security transfer system to backup computers at the Federal Reserve Regional Bank in Richmond, Virginia.

CNN: Attacks prompt widespread closings

On Tuesday, the Electronic Privacy and Information Center (EPIC) plans to file the second of two petitions to the Federal Trade Commission against Ask, demanding that the search firm address what EPIC believes are privacy violations in AskEraser.

FORBES: Ask.com's Search Policy Splits Privacy Groups