The Joker is a complex and scary character in the Batman comics – and a frightening bit of Android malware
In the soon to be released Joker movie, Joaquin Phoenix plays Arthur Fleck as he morphs into the complex, twisted and downright scary character we know from the Batman comic books and films. Back in the real world, security researchers have warned that a complicated, twisted and scary piece of Android malware called Joker has already been downloaded nearly half a million times from the Google Play store.