Google owner Alphabet becomes trillion-dollar company

Tech giant is the fourth US firm to achieve the valuation – after Microsoft, Apple and Amazon

Microsoft pledges to be ‘carbon negative’ by 2030

Company seeks to remove more carbon from the atmosphere than it emits within a decade

I’m still on Windows 7 – what should I do?

Support for Windows 7 has ended, leaving Marcy wondering how they can protect themselves

Microsoft rolls out Windows 10 security fix after NSA warning

US agency revealed flaw that could be exploited by hackers to create malicious software

Skype audio graded by workers in China with ‘no security measures’

Exclusive: former Microsoft contractor says he was emailed login after minimal vetting

What we learned from over a decade of tech activism

Our database of collective actions challenges the mainstream media narrative. Here are our eight key insights

Last minute tech Christmas gift ideas for every budget

Left it a bit late? Here’s a quick list of good tech things for people of all ages

Vladimir Putin ‘still uses obsolete Windows XP’ despite hacking risk

Official photos seem to show president using unsupported OS at Kremlin and residence

‘Mind your own business, Alexa!’ How to keep secrets from your voice assistant

Call centre workers who check how helpful our voice assistants are say they hear private conversations and couples having sex. Here’s how to avoid sharing your private life

Apple and Google named in US lawsuit over Congolese child cobalt mining deaths

Dell, Microsoft and Tesla also among tech firms named in case brought by families of children killed or injured while mining in DRC

Microsoft names its new games console Xbox Series X

The machine previously known as Project Scarlett will be four times as powerful as Xbox One X with a range of next-gen features

New study deems Amazon worst for ‘aggressive’ tax avoidance

Transparency campaign Fair Tax Mark says big six tech firms have paid a fraction of headline tax rate for 10 years

EU ministers to vote on move to expose firms’ tax avoidance

Companies could be forced to reveal profits made and taxes paid in each EU member state

Has Microsoft given up on small business?

Instead of dealing directly with difficult smaller customers, Microsoft has politely punted the obligation to its partners – and that’s OK

Big tech, big profits? Amazon sales poised to leap 24%

Shares have risen fivefold in five years and despite the shadow over tech analysts bet Amazon is immune to a backlash