U.S. intelligence officials believe al Qaeda is attempting to infiltrate the Syrian opposition forces without their knowledge.
The issue highlights how behind-the-scenes conflicts between the digital and traditional media worlds affect consumers, often without their knowledge.
In one case now under investigation, up to 1, 000 people were signed up for the party without their knowledge.
While those owners may emerge as suspects, sources point out that their computers might have been programmed without their knowledge.
These experiments some of which, unlike Tuskegee, were classified included injecting people with plutonium without their knowledge and feeding radioactive oatmeal to retarded children.
Creepshots are photos taken of women in public, but without their knowledge or consent, and shared based on titillation of that non-consent.
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Of course, this is not the only example of how snooping on customers without their knowledge can lead to a bad news day.
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When law enforcement has the advantage of tracking someone without their knowledge, software and hardware keyloggers can be an effective method to obtain password credentials.
The problem was that the bank never considered the idea that documents like certificates of deposit could be generated on a LaserJet printer without their knowledge.
While one city may be interested in installing videos to catch illegal garbage dumpers, another will cringe at the notion of filming citizens without their knowledge.
It is never exactly good for chairmen or chief executives of big businesses to admit that serious malpractices have taken place in their organisations without their knowledge.
Blue Coat and NetApp both denied selling equipment to Syria, which is on the U.S. sanctions list, and insist that their equipment was redirected without their knowledge.
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Retailers say the factories often do this without their knowledge.
In 2002, it was revealed that commission-hungry sales staff working for London Electricity drummed up new customers by forging their signatures and switching them without their knowledge or consent.
What is more, 2% of consumers said that their signature had been forged, 12% felt they had been "duped" into signing a contract and 11% had been transferred without their knowledge.
But critics worry that the measure will result in privacy violations and even discrimination, allowing airlines to charge certain kinds of passengers, such as business travellers, more than other passengers, potentially without their knowledge.
To capture a sense of life in a new destination, many travellers have used zoom lenses and hidden-camera tricks to surreptitiously snap photos of locals without their permission -- and likely -- without their knowledge.
In the other case, the FTC charged Path, the operator of the eponymous social-networking app, with deceiving its users by collecting personal information from their mobile address books without their knowledge or consent.
There should be no surprises like those that hit some Groupon users recently when they discovered that their purchases were being posted to Facebook without their knowledge, for the whole world to see.
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Some users who received the email noticed that some of their tweets had been deleted, while others said spam links had been posted without their knowledge - a typical characteristic of a compromised account.
The Daily Mail and Daily Telegraph have both been giving the issue a lot of coverage recently after families have come forward saying their loved ones were placed on the pathway without their knowledge.
Last November, it was embroiled in the so-called "ScamVille" controversy, in which critics accused the publishers of allowing in their games misleading advertisements that purported to offer free virtual currency, but subscribed players to services without their knowledge.
And bosses can be sent to prison for up to 20 years if their companies fall foul of the FCPA. In theory, they could be jailed because a staff member at a foreign subsidiary bribed an official without their knowledge.
With potential jurors sent home Thursday, the judge weighed several pretrial motions, including one asking her to dismiss 47 of the counts against Strong that relate to invasion of privacy of people prosecutors say were prostitution clients videotaped without their knowledge.
And it's why big business thinks that the best way to get personal with customers on the Internet is with "big data, " gathered by placing tracking files in people's browsers and smartphone apps without their knowledge so they can be stalked wherever they go, with their "experiences" on commercial websites "personalized" for them.
It comes after some patients were placed on the Liverpool Care Pathway - designed to relieve suffering - without their relatives' knowledge.
"The Pennsylvania legislature could have rationally believed that some married women are initially inclined to obtain an abortion without their husbands' knowledge because of perceived problems -- such as economic constraints, future plans, or the husbands' previously expressed opposition -- that may be obviated by discussion prior to the abortion, " wrote Alito.
In December it emerged babies' ashes had been scattered in Edinburgh without the knowledge of their parents.
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The truth is that herbs are rarely-to-never taken without knowledge of their effects gained either from books on herbology or alternative medical practitioners.
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Mr Hachani's view was that the party's fighters who had negotiated the deal without the knowledge of their political leaders had been suckered.
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