Kaspersky Lab has an unusual pop-up shop in London. <https://www.engadget.com/2017/09/07/data-dollar-store-london-ben-eine/> [..]to acquire the mug, you had to hand over three photos, or screenshots of your WhatsApp, SMS and email conversations, to Kaspersky. To buy the t-shirt, it had to be the last three photos on your Camera Roll — so you couldn't be selective — or the last three messages on your phone. The original print, finally, forced you to hand over your phone. A member of staff would then poke around and select five photos or three screenshots. You could barter with them, but ultimately it was their choice. [...]