Keys, a well-known figure in the Twitterverse, was charged Thursday with conspiring with the hacking group Anonymous to alter a Times news story in late 2010.

WSJ: LA Times hack: Security breach or harmless prank?

In a Thursday afternoon presentation titled "Hacking Capitalism" at the Black Hat conference, a gathering of computer security experts, they detailed weaknesses in applications using Financial Information eXchange Protocol, or FIX, a common language used in communications between banks and commercial markets.

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Sue Akers, the deputy assistant commissioner leading the police's phone-hacking investigation, responded by issuing a statement Thursday that the police was continuing a recent effort to contact people whose details are included in the documents they seized in 2006.

WSJ: Police Feel the Heat in U.K. Tabloid Scandal

At a news conference Thursday, the group Hacked Off, which represents phone-hacking victims, celebrities such as actor Hugh Grant, journalism experts and others, urged Mr. Cameron to reconsider his position and support a new British press law.

WSJ: Leveson Report Urges 'Self-Regulation' of U.K. Press

Last Thursday, the Metropolitan Police made their first arrest in the computer-hacking probe, called operation Tuleta.

WSJ: Singer Charlotte Church Alleges Trade-Off With Murdoch Papers