While we are at it, let me go on a little tangent: I have Yahoo mail for android which i use as a dump of my emails, and I get perhaps 100 emails per day. After about 4-6 weeks, Yahoo mail app becomes so slow, that it is no longer possible to even scroll through emails (on Nexus 5). I have to clear Yahoo app's data cache, and reconfigure to make it fast again. Perhaps it's time to take a look at this: when you have things decaying and breaking like that, it encourages hackers to look extra hard for vulnerabilities, since it's a reasonable assumption that other things are neglected, too. I should note that Yahoo's android mail app is probably the most viable part of the whole Yahoo business now.