Burglars could also use Google street view to case a house instead of drive bys. They would be looking for ease of access and any covering such as fences, Mr Wilson said.
Marsden Hulme of security firm Vivint said people carelessly accepting friend requests or making posts visible to everyone unwittingly provided all the information a would-be thief could ask for.
"Often on holiday we want to share the experiences with friends and family, posting photographs and status updates for the grandparents to see - but all we're doing is letting would-be burglars know our movements," he said.
Bay Security Systems owner Andrew Straker said personal security online was just as important as ensuring you were also not leaving yourself vulnerable in the real world.
"Get your letterbox emptied. Leave shoes outside. Leave your key and a code for the alarm with someone, rely on your neighbours, they're the best thing."
Tauranga police Senior Sergeant Rob Glencross said social media could be used by people with a criminal agenda.
"The more information you put out there, the more risk you put yourself in."