The Heartbleed bug, a newly discovered security vulnerability that puts users' passwords at many popular Web sites at risk, has upended the Web since it was disclosed earlier this year. It's an extremely serious issue, and as such, there's a lot of confusion about the bug and its implications as you use the Internet.

CNET has compiled a list of Frequently Asked Questions to help users learn more about the bug and protect themselves. The Heartbleed situation is ongoing, and we'll update this FAQ as new issues arise. Check back for new information.

Adobe has confirmed that about a month ago hackers infiltrated their network and stole millions of customer emails and encrypted passwords. They have further acknowledged that your password hint, name, encrypted credit card number, card expiration date, and other confidential information may also have been leaked. An analysis of the hack by Paul Ducklin of Sophos states that 150 million users have been affected and that the encryption methods used to protect customer data are extremely weak.

Adobe sent an email advising customers to change their login details but most customers thought the email was just another Phishing scam and ignored it.

Last week Google announced its new Hummingbird algorithm update, putting lots of SEOs into doubts and concerns – what should this algorithm change mean to you and your website? To make sure you don't get down into panic and plan your SEO strategy wisely, we've put up this short guide to explain what Hummingbird update is, how it affects your rankings and how to adapt your SEO strategy to benefit from the changes.

So, what do we know about Hummingbird?