Update 3:53 p.m.: You can also check whether a site was affected by the Heartbleed virus with this free tool from McAfee .
Last week Internet security experts were in a rightful panic over the Heartbleed Virus. In case you haven't heard of it here is an explanation: the computer bug takes advantage of a weakness that has always existed in most secure websites, allowing your supposedly safely guarded information to leak on the Internet.
The leaks have occurred since 2012.
Experts urge you to change your passwords on all password protected sites you use to be on the safe side. Thanks to Mashable, we now know which sites were affected, so now you can prioritize.
Here is the short list. Read Mashable's full list.
Site's Affected by the Heartbleed Virus
Here is a video explainer on the Heartbleed Virus. If you have more questions on it, feel free to ask us.