#TG:HACK2019 In one of my classes, some students were sending notes back and forth. I confiscated one of the notes, but it only contained this: vyLlwWSY1PCK5ELNTPUVdpl8z0rIXiB2+Ybcu/BeXidR3MEiym852HCkS6wHVCr+CdpP6Moe9VQUeFcyq3vZDpVK/orl+8v…