As a victim of ID theft through a leak in eBay's own portals (including this forum, and I'll get to that in a minute), I now take these ID trawling e-mails very seriously. Basically, though melodramatic as it may sound, we're under siege here folks--especially PowerSellers--and the more successful you are the more desirable and likely target you become. Not only from those of fraudulent intent without, but even from competitive harassment within.
My own eBay ID theft was a twin hit during the Christmas rush and immediately thereafter, both occuring during absolute peak selling periods. In both cases, once I had identified the hijack and notified eBay, their only mechanism for stopping such incursions was immediate suspension of my account and the cancellation of all auctions. Overnight, I lost hundreds of dollars in active auctions, and hundreds more by missing out on a key seasonal auction window...and that's not even getting into the ancillary costs of time lost writing eBay and fielding queries from angry buyers burned by the hijacker's scams, and on and on. It was a nightmare, the likes of which I had never encountered in my IT career and swore I would never allow happen again.
Throughout this siege, eBay maintained that I had somehow given out personal information through one of these "spoof" e-mails, which was absolutely not true. I have been a computer and systems consultant for almost 20 years, and run a very 'tight' desktop. I had never had a whiff of security problems before, or, tellingly, anywhere else in my 'Net based dealings (bank accounts etc.)--not even a crippling virus. To me, this was clearly a 'Made in eBay' problem, which I almost immediately confirmed by having my system examined by two independent Security Experts. For what it's worth, my suspicions--and their confirmations--of what to watch out for in this particular environment:
1. Default Login - it is not secure, and there is no user preference to make it secure only. Each and every time you see an eBay login screen for any of the multitude of reasons we constantly have to do so (filing NPB's, etc.), you will be defaulted to a non-secure login even if you have already logged in securely. You have to click SSL every single time. In a transaction intensive environment like this, SSL *should* be the default, but is not because eBay refuses to limit the access to their site, and some older operating systems cannot use the secure login.
2. PowerSeller Board Login - my eBay ID theft occurred shortly after becoming a PowerSeller and logging into these boards. At first I thought that might just have been a coincidence, but then I noticed something 'funny' about the message board login (try this yourself without actually logging in to prove my point). If you click the Powerseller board link at the upper left (the one I use exclusively now), you will be logged in securely through SSL (you'll see the https in the address line). However, if you use (as I initially did) the Canadian board login underneath the U.S. Powerseller link (which BTW is secure), you will be logging in from a page that is not secure. Any skilled hacker who 'listening' on that port has a nice little pre-qualified list of eBay ID's and passwords--better yet, for sellers only, and among the top echelons of sellers at that. This is where I believe the leak occurred that resulted in my own ID theft, because those who culled by eBay ID immediately used it to change my password and e-mail address, and create fraudulent listings. How they used that info was a 'smoking gun' for where they likely got it.
3. eBay Toolbar - I had only been running it for a brief period before all this happened and got rid of it immediately after I discovered that the toolbar add-on leaves an unencrypted plain text file of your login info sitting neatly in your root directory. Whether directly related to this particular type of hijacking or not, that's just a tad too insecure for my tastes.
In fairness to eBay (particularly the Security folk on *.com) despite the draconian measures taken to regain control of my account, they did respond quickly (again, especially *.com--the Canucks were totally non-com throughout the holidays), and after reporting the assessment of the Security experts who forensically examined my system, I did receive some positive response to my suggestions that:
1. For PowerSellers, SSL should be the default login...everywhere in the eBay system. PowerSellers are not casual users--they are businesses with serious investment at stake and should be afforded that standard protection across-the-boards.
2. If that surgical level of security is too awkward from a techncial standpoint to implement automatically, then SSL should at least be a selectable user preference. Once clicked, all login screens you see are SSL by default.
3. Finally, eBay should stop castigating users for its own leaky security. On top of the 'blame the victim' accusations I was subject to, I had to pay hard dough to prove what I strongly suspected was true: there was nothing wrong with my properly firewalled, and virus protected system, or my security precautions on the 'Net. This was only occurring on eBay.
Still no signs that any of those suggestions have been implemented, so my advice to other PowerSellers is: user beware, leaks aplenty abound on this site. Your best protection is to never give out any personal ID info, even in Tech Chat, on any eBay page that does not have the https, or an SSL link.
As for those trawling e-mails, I now redirect them to eBay (both spoof@ebay.ca and spoof@ebay.com), or to spoof@paypal.com, as soon as they arrive. The idea is to keep them as deluged with this stuff as we are, and maybe eventually they'll get the message that their responsibility for ironclad security should be a top drawer issue everywhere within their venue.