What is this "Vacant And/Or Unsecured" notice on the door?

[Nick Stille]

So down the street from my house there is this house that has this notice on the door:

I'm not sure what it means. Can someone explain it to me? I looked up the property on the local county accessor's page and it seems to still by owned by an individual, not a bank. Does anyone have any ideas what might have happened? Also does anyone have any outside the box ideas for acquiring this property? I can't really mail a letter because this house is vacant, and it's the only house listed for the owner. Any ideas or thoughts would be greatly appreciated. This BP community is awesome!

[Ned Carey]

This is a notice from the bank. All  Mortgages say that if you abandon the property they have the right to come in and secure it. 

It is s sign of financial distress. The property is or will likely soon be in foreclosure. (Keep in mind Soon in bank terms may mean a year or more)  This could be a great opportunity or it could be a lot of jumping though hoops and red tape to keep hitting dead ends. The bigger the bank the more likely it is the latter