Well, I am going to let your imagination run wild as to the personal-apocalypse scenarios possible here.
BBC, 20 July 2015 (hat tip: NC)
Customer data has been stolen from Ashley Madison, a dating website for married people who wish to cheat on their spouse.
The hackers said they had obtained information including "all the customers' secret sexual fantasies and matching credit card transactions".
The site's operator confirmed there had been an "intrusion" but not its extent.
One security expert said a small percentage of the site's user account data had been published online...
Ashley Madison says it operates in more than 50 countries and has 37 million users, more than a million of whom live in the UK.
It promotes its service with the tagline, "Life is short, have an affair."
The only apocalyptic novel I can recall that involved computer dating was Will McIntosh's Soft Apocalypse. As I recall the author had done some research on these services. But I also seem to recall that the scenario they were involved in didn't add much to the book. This sounds like a much a scenario that could involve a lot more firepower.