For the vast majority of us passwords are they only security mechanism that protects our email, our money or our healthcare information. This is why passwords and human behaviour are often the weakest link in network security.
If this password is weak it can be trivial for even a slightly motivated attacker to run an automated dictionary attack to try and compromise your password. For many passwords this can literally take seconds to do, simply because the passwords used are common everyday words.
The most common passwords used in 2015 are:
If you recognise something here you have a problem and you MUST change your password immediately. Rather than bore you with a long winded spiel, we suggest you invest a couple of minutes and watch this YouTube video:
Some more information:
We’ve spoken briefly about how an attacker can use an automated system to compromise you password. While this is a very common method, often it is easier to get people to tell you what their password is by using what is called a social engineering attack. If you don’t believe it is possible, look at how easy it is in this YouTube video: