Point it at a site or an entire domain, such as .edu, and it generates a list of e-mails, log-in screens, database errors and source code, all of which are classic ways to gain entry onto a server.

FORBES: Google Me Not

The user must then retrieve all the codes, or keys, and enter them into fields on Facebook's password-recovery page to log back in, a Facebook spokeswoman said in an e-mail.

CNN: Mark Milian,

Viveros said there's a growing number of remote access Trojan programs sent via e-mail that can open the backdoor to a user's PC and gather log-ins and passwords to company intranets.

CNN: New 'Trojan Horse' strain may go mainstream

Affected users will not be able to log in and will receive an e-mail instructing them to reset their password.

CNN: Twitter hacked; 250,000 accounts affected

This means I need to log on each time I want to check e-mail.

CNN: Satellite access a mixed bag

After the computer boots up, simply log into your Google account and all your apps, e-mail, calendar appointments and contacts load instantly.

CNN: My month with the Chromebook Pixel: A review

All shops have to do is log deliveries and pick-ups through a website that automatically sends e-mail and text-message alerts to addressees.

ECONOMIST: Package pick-up services are set to prosper

Google Talk requires users to register with a username from Gmail, the company's e-mail service, and uses that mail address as the user's IM log in.

FORBES

Ms. NANCY FLYNN (Founder and Executive Director, ePolicy Institute): The courts have tended to rule that even if your employer has not alerted you that Internet and e-mail activity is being monitored, any employee should be reasonably assume that when you log on, Big Brother is going to be reading over your electronic shoulder.

NPR: Is Web-Surfing a Job Hazard?