One possibility is the "Hostile Subdomain Takeover" attack recently mentioned here, where an attacker could have control of, say, help.fedex.com https://news.yc

One possibility is the "Hostile Subdomain Takeover" attack recently mentioned here, where an attacker could have control of, say, help.fedex.com https://news.ycombinator.com/item?id=14860149 https://news.ycombinator.com/item?id=14860149