Business

Twitter Blue signups unavailable after raft of fake accounts

Twitter's relaunched premium service—which grants blue-check "verification" labels to anyone willing to pay $8 a month—was unavailable Friday after the social media platform was flooded by a wave of imposter accounts ...

Security

No honor among cyber thieves

A backstabbing crime boss and thousands of people looking for free tutorials on hacking and identity theft were two of the more interesting findings of a study examining user activity on two online 'carding forums,' illegal ...

Security

Hacker holds Australian health insurer's data for ransom

A cybercriminal was holding for ransom an Australian health insurer's customer data including diagnoses and treatments, in the nation's second major privacy breach in a month, officials said on Thursday.

Business

Alibaba shares leap after Ant Group IPO filing

Shares in Chinese e-commerce giant Alibaba jumped to a new record Wednesday morning, a day after the group's financial arm filed paperwork for a joint Shanghai and Hong Kong listing.

Business

Record-breaking Bitcoin tumbles on Yellen warning

Bitcoin tumbled Tuesday from its record-breaking run after US Treasury Secretary Janet Yellen warned that the "highly speculative" unit could be used for "illicit" purposes.

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Credit card

A credit card is part of a system of payments named after the small plastic card issued to users of the system. It is a card entitling its holder to buy goods and services based on the holder's promise to pay for these goods and services. The issuer of the card grants a line of credit to the consumer (or the user) from which the user can borrow money for payment to a merchant or as a cash advance to the user.

A credit card is different from a charge card, where a charge card requires the balance to be paid in full each month. In contrast, credit cards allow the consumers to 'revolve' their balance, at the cost of having interest charged. Most credit cards are issued by local banks or credit unions, and are the shape and size specified by the ISO/IEC 7810 standard as ID-1.

This text uses material from Wikipedia, licensed under CC BY-SA