I recently suffered a major security breach, with hackers opening new accounts in my name and preventing me from accessing my account. They took over my emails and I had to delete all secondary accounts. I still have alternate redundant email addresses, and I suspect hackers could be using them. Please delete those addresses ASAP. In the same vein - why does not Virginmedia still use 2-step authentication protocol? All other providers, even free ones, do! Your customers will benefit from this a lot.