Heartbleed, the massive security threat that has recently affected millions of websites, was patched by most large Internet companies and by many site owners, but regular Internet users failed to grasp the significance of the threat, a new Avast study revealed. Furthermore, less than half of those people who knew about Heartbleed failed to take any action once sites fixed the problem. The online study performed on 268,000 respondents worldwide showed that 75% of people in the study were not aware about the Heartbleed threat. When Avast explained to them what it meant, 90% said they would change their passwords after checking which sites were affected by the security issue. However, only 40% of respondents who were aware of Heartbleed said they actually changed