Image copyrightGetty ImagesImage caption India has 400 million WhatsApp users, making the country its biggest market

India's main cyber security agency, Cert, has asked users to update WhatsApp on their phones after the discovery of a potential vulnerability on older versions of the messaging app.

The potential

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The Twitter account of Arron Banks, the founder of the pro-Brexit campaign Leave.EU, has been hacked.

The perpetrator has leaked thousands of his private messages to and from dozens of other people spanning several years.

In a statement, Mr Banks accused Twitter of taking too long to tackle the issue and said the social network had

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Image caption Snapchat will moderate and allow political ads on its platform

Snapchat's CEO Evan Spiegel has said the company will fact-check political ads on its platform.

The announcement comes as other tech giants face criticism for their policies ahead of the 2020 US presidential elections.

Facebook has said

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Video-game players perform worse when being insulted - even when the insults come from a robot, a study suggests.

Researchers at Carnegie Mellon University asked participants to play a logic-based game with Pepper, a personal assistant from SoftBank.

The robot switched between giving players encouragement

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Image copyrightValveImage caption Half-life remains one of gaming's best-known series, despite there not having been a new title in more than a decade

Game developer Valve has announced a new title in its well-known Half-Life series of games.

The next one, called Half-Life: Alyx, will be available in March 2020.

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The board of TSB has been accused of a lack of "common sense" in the run-up to IT failures that left up to 1.9 million customers unable to bank online, some for several weeks, in April 2018.

An independent report into the incident by law firm Slaughter and May blamed both TSB and IT provider Sabis.

Customers were moved on

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