Report: FBI probes hacker attack on Citigroup

(AP) -- The FBI is investigating a hacker attack on Citigroup Inc. that led to the theft of tens of millions of dollars, The Wall Street Journal reported Tuesday.

Facebook users hooked in new 'phishing' scam

Facebook on Friday was blocking links to bogus websites set up to look like the home page of the popular social network in a "phishing" attack by hackers.

US struggles to pinpoint cyber attacks: Top official

The United States often cannot quickly or reliably trace a cyber attack back to its source, even as rival nations and extremists may be looking to wage virtual war, a top official warned Tuesday.

Deloitte says 'very few' clients hit by hack

Deloitte said Monday that "very few" of the accounting and consultancy firm's clients were affected by a hack after a news report said systems of blue-chip clients had been breached.

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