A house in Ravenscroft Road, Willenhall, was broken into some time between 12.15am and 6.45am today.
The culprit snapped off the lock on the uPVC door at the back of the property before proceeding to plunder the premises, stealing a mobile phone and bank cards as well as the car keys and money.
As revealed by the Express & Star lock-snapping is fast becoming the 'entry method of choice' for Black Country burglars with criminals able to gain silent entry to homes at night within minutes.
Kevin Pitt, police, engagement and consultation office in Walsall, said: "The 'euro profile' locks fitted to most uPVC doors are vulnerable to being snapped, which then gives access to the locking mechanism.
"Consider replacing locks in your doors with anti-snap locks to improve your home security."
The incident occurred a day after an attempted break-in elsewhere in the town which is not thought to be connected.
Either using a ladder or climbing on top of a porch roof a would-be burglar clambered to the first floor window of a home in Riding Way some time between 10.30pm on Monday and 8.30am on Tuesday.
They damaged the window by trying to force it open but were unsuccessful in gaining entry.