Talkcast tonight, 10pm ET/7pm PT: Scattered passwords, like the corners of my cloud

You can have near-perfect digital security -- a FileVault-protected computer, onsite and offsite backups, a team of angry vultures flapping around your ISP connection 24/7 -- and still be undone by breaches outside your control. Evernote is the latest service to acknowledge porous borders around its user information.

Let's pessimistically assume that at some point each of your online service accounts will be attacked, either by malware on your machine or by hackers at the home office. The unfortunate but unavoidable consequence of these breaches is that you have to work extra-hard to isolate those services, so a problem in one corner won't break down the rest of the fortress.

Unique passwords, a throwaway reset email account and false security answers: we'll talk about those techniques and more tonight on the security-conscious Talkcast. Bring your questions and your answers, and we'll see where the line between reasonable security and outright paranoia might be.

To participate live during the show, you can use the browser-only Talkshoe client, the embedded Facebook app, or download the classic TalkShoe Pro Java client; however, the best way to have your voice heard is to call in.

For the web UI, just click the Talkshoe Web button on our profile page at 4 HI/7 PDT/10 pm EDT Sunday. To call in on regular phone or VoIP lines (viva free weekend minutes!): dial (724) 444-7444 and enter our talkcast ID, 45077 -- during the call, you can request to talk by keying in *8.

If you've got a headset or microphone handy on your Mac, you can connect via the free X-Lite or other SIP clients (aside from Skype or Google Voice), basic instructions are here. Talk to you tonight!