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Hello and welcome to TechTent, your weekly update on the hottest technology stories.

I'm Jane Wakefield, standing in for Rory Keflin Jones, and he's missing a big day, because today it's our sixth birthday.

And joining me on this auspicious day is my colleague, Chris Fox.

What are you going to be talking about today, Chris?

We're here to talk about Microsoft's efforts to become carbon negative.

And with us from Edinburgh is Catherine Stiler, a former member of the European Parliament

and now Chief Executive of the Open Knowledge Foundation.

Hi, Catherine.

Hello, happy birthday.

Thank you very much.

Now, we've got a packed programme today, and here's a little taste of what's coming up.

Our investigation show that many companies that we've never heard of are directly embedded into the apps and receive quite a lot of sensitive information.

One generation is the one who came up with the idea, didn't know if it was going to work, it was a risk and then the other one,

they haven't known life without this invention.

...