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All items from June 2020

20 Jun 2020 : Waste data dump #
My latest waste data dump just has been uploaded. My daily average over the last fortnight was 162g per day, which is a generally decent result for me. My goal is less than 300g, and during lockdown I've been closer to 150g, but a month ago it looked like things were creeping up. I'm much happier with 162g. That sets my 2020 average to date at 199g per day, compared to 304g in 2019. Breaking it down, my plastic output was rather high this fortnight. This is a bit of a cycle, because I buy many products in plastic containers (cosmetics; foods; cleaning products) which often last more than a fortnight. Returnables is also up because in the hot weather I'm buying more drinks. This was counterbalanced by less card and paper although I'm not really sure why to be honest.
7 Jun 2020 : Waste data dump #
I've uploaded another fortnight of waste data, up on my waste data page. The last two weeks haven't been so great again, with my daily average of 258g/day. That's below my target, and below the previous fortnight, but still well above my output level from a month ago, which was closer to 150g/day. The change has been driven by a few exceptional items in the card and compost categories making it into the bin; I need to make sure exceptional doesn't become routine.
1 Jun 2020 : Deploying authentication in the wild: Towards greater ecological validity in security usability studies #
Finally it looks like the last of the Pico papers, written with my co-authors Seb Aebischer, Claudio Dettoni, Graeme Jenkinson, Kat Krol, Toshiyuki Masui and Frank Stajano, and which has been working its way through the review process for many months, will finally be published. The paper is called "Deploying authentication in the wild: Towards greater ecological validity in security usability studies" and it describes the results — and challenges — of our usability trials of the Pico password replacement app. The details are now on my publications page and there's also a preprint.