Dr Aleksandr KoganImage caption Dr Kogan has said Facebook is using him as a scapegoat in the crisis

The academic at the centre of the Facebook data scandal has said the social network is in full-on "PR crisis mode".

Aleksandr Kogan's remarks came as he faced a grilling over his role from MPs.

The social network was fully aware

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Rugby trialImage copyrightTimeline Television LtdImage caption The BBC's trial was the first 4K HDR live broadcast of its kind

The BBC has broadcast a live event in 4K resolution and high dynamic range (HDR) colour for the first time.

Its iPlayer service streamed a full rugby match on Sunday, which was made available to the

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Ransomware infects Ukraine energy ministry websiteImage copyrightAlienVaultImage caption Hackers have used a ransomware cyber-attack to compromise a Ukranian government website

Hackers have used ransomware to take the website of Ukraine's energy ministry offline and encrypt its files.

The website currently contains a message written in English, demanding a

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The senior citizens taking on codingThe senior citizens taking on coding
The senior citizens taking on coding - BBC News ]]> ]]>

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Vodafone storeImage copyrightGetty Images

Vodafone has been rated the worst mobile phone provider for the seventh year running in an annual customer survey by consumer lobby group Which.

The other leading providers, EE, O2 and Three, also scored badly, with service judged "average" and "disappointing".

Of the small providers, Utility Warehouse ranked highest for

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Chinese tech giants' sexist job ads exposedImage copyrightAFP/GettyImage caption Discrimination in recruitment has contributed to a decrease in the proportion of Chinese women working, Human Rights Watch says

Leading Chinese tech firms have pledged to address gender discrimination in job ads after a damning report by campaign group Human Rights Watch

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