A new advertising campaign aims to help members of the public not to expose themselves to thieves and burglars.
The Home Office campaign reminds potential victims that almost a third of burglaries occur when windows and doors have been left open or not locked properly.
The increasing danger of personal theft, particularly with items like mobile phones, is also highlighted in the campaign.
Householders are being encouraged to lock doors and windows before going out and not to leave expensive items or car keys on the show.
The adverts are due to appear on TV, radio, online and on posters.
Home Office Minister Alan Campbell said: "Simple things like locking your doors and windows when you're out, not leaving valuables on display or just making sure your bag isn't hanging open on the bus will keep the criminals out."
© Press Association 2009