Researchers at the Black Hat computer security conference in Las Vegas on Thursday showed how hackers could take control over iPhones simply by sending special codes via SMS messages.

上周四在拉斯维加斯举行的Black Hat电脑安全大会上，研究人员展示了黑客简单地通过手机短信发送特定代码就能控制iPhone手机。

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Bar codes, familiar to us all as the black and white rectangular mark that enables products in a supermarket to be tracked, represent data using the spacing of parallel lines.

条形码就是我们大家都熟悉的超市中用来跟踪商品的那些黑白色相间的长条标记，它利用这些黑白色平行线的间距来表示数据。

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Indeed, America and Britain were so deeply penetrated that the Russians soon found out about Venona, changing their codes and cipher machines on October 29th 1948—"Black Friday" for code-breakers.

毫无疑问的，美国和英国非常清楚苏联很快就发现了Venona的存在，并更改了了他们的密码和密码机在1948年10月29号—译码者的“黑色星期五”。

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Black Codes and Jim Crow laws once disarmed and disenfranchised people on the basis of race.

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As huge fans of both technology and art, our team decided to play around with some QR art concepts, borrowing some elements from traditional graffiti (drips), technology and toys (pixels made out of legos) and incorporating some rounded lines, added movement and bright colors to show that there is more to QR codes than black and white squares.

FORBES: JESS3 QR Art

Rio de Janeiro is adding something new into its trademark black-and-white mosaic pavements: QR codes.

BBC: Rio de Janeiro brings QR codes to its streets