The Brexit whistleblower: ‘Did Vote Leave use me? Was I naive?’

Shahmir Sanni, a volunteer for Vote Leave, the official pro-Brexit EU referendum campaign, explains how a company linked to Cambridge Analytica played a crucial role in the result, and voices his concerns that electoral spending rules were manipulated… and evidence apparently destroyed

Why young, inexperienced BeLeavers were perfect for the Brexit campaign

Vote Leave didn’t know how to reach liberal Eurosceptics. But Darren Grimes and his friends, with their witty internet adverts, could do just that

Revealed: Brexit insider claims Vote Leave team may have breached spending limits

Whistleblower alleges that electoral spending rules could have been manipulated over controversial donation and that Vote Leave ‘tried to delete key evidence’

‘A grand illusion’: seven days that shattered Facebook’s facade

Revelations about the depths of Facebook’s failure to protect our data have finally pulled back the curtain, observers say

Cambridge Analytica academic’s work upset university colleagues

Emails reveal rows over Aleksandr Kogan’s ‘get rich quick scheme’ with Facebook data

Rise of digital politics: why UK parties spend big on Facebook

Online advertising is an effective way to get messages across, but the strategy must be smart

Elon Musk joins #DeleteFacebook effort as Tesla and SpaceX pages vanish

In a jab against the embattled social network, Musk joked ‘What’s Facebook?’ before deactivating his companies’ official pages

The people owned the web, tech giants stole it. This is how we take it back

Social media gave the powerless a weapon but it was wrenched away by firms like Facebook and Cambridge Analytica, says Guardian columnist Jonathan Freedland

The world still needs news. It’s time Facebook realised this

Journalists are grateful for the reach the internet gives us, but those who harvest data must take responsibility for the risks this brings, says Channel 4 News presenter Jon Snow

The Guardian view on regulating Facebook: the time has come

Editorial: People have social reasons to be on Facebook. These explain both why users value it despite its privacy risks and why they underestimate those risks. It’s time government stepped in to safeguard public privacy

There are plenty more like Cambridge Analytica. I know – I’ve used the data

In a world where companies have a monopoly over our eyeballs, the Facebook scandal is the tip of the iceberg , says the Guardian columnist Poppy Noor

Delete Facebook? That’s as hard as giving up sugar

Many are declaring they plan to delete Facebook. That’s easier said than done, says Dean Burnett, a doctor of neuroscience and author

Facebook says warning to Guardian group ‘not our wisest move’

GMG received legal letter from Facebook day before Observer report on mass data harvesting

Steve Bannon on Cambridge Analytica: ‘Facebook data is for sale all over the world’

Trump’s ex-chief strategist says he ‘helped put the company together’, but didn’t know about data harvested from Facebook

The poison in politics runs deeper than dodgy data

Cambridge Analytica and Russia may have played a role in Donald Trump’s victory. But greater responsibility lies elsewhere, says Gary Younge, editor-at-large for the Guardian