A group of researchers studied 15 months of human mobility movement data taken from 1.5 million people and concluded that just four points in space and time were sufficient to identify 95% of them, even when the data weren’t of excellent quality.Many are equipped with facial recognition to keep tabs on the movements of minorities.In some examples, hackers have hijacked baby monitor cameras to stalk breastfeeding mums, threaten parents that their baby was being kidnapped, and say creepy things like “I love you” to children.Beyond hacking, businesses can also use data collected through IoT devices to further target customers with products and services.A letter to the US Federal Trade Commission signed by 26 civil rights and privacy advocacy groups said: Linking iRobot devices to the already intrusive Amazon home system incentivizes more data collection from more connected home devices, potentially including private details about our habits and our health that would endanger human rights and safety."