The Abus FG200W (the "W" stands for white, they are also available unpainted and in Brown) no longer does that. Correctly mounted the lever moves in sealed condition no longer. At least with muscle power is nothing. If the intruder used a sledgehammer, the lock may give (I have not tested), but then he might as well smash the entire disc. But burglars do not want to stand out as a rule. (Just get a crash course in burglar knowledge of the investigating officers and my Glaser Hab.)
Installation is simple. I have replaced three non-closing window knob in five minutes against the FG200. I would have done it in three minutes, I had previously read the installation instructions. ;-)
That all window handles of this series have the same key, I see as a defect. In the "German market" specialized intrusion professionals have to secure in their toolbox. Here the manufacturer could have taken up series with different types of keys. So two-, four-, six-packs with the same keys whose locks are not the same as other packs. On the other hand, professionals such simple locks also silent with a bump key opening (Google search word: lock picking). The window handles are still relatively sluggish after weeks of regular use. For both reasons, a star deduction. As a measure against burglars opportunity they are nevertheless certainly recommended - at least said my glasses and the police. Both instances advised me as ground dwellers additional shutter fuses. Is there much cheaper than the hardware store on Amazon, and both.
The FG200 secure also been tipped window. However, it should not be relied since the vulnerability is in this tilting mechanism itself - because the burglars simply press the pin out of the tilting mechanism, showed me my burglar harm eliminate Direction Glaser.
Important for ground dwellers is a mushroom head lock window and door hinges. Anyone who does not have, it should be retrofitted. For me it was available and the Aufhebelversuche the burglars had left only traces of leverage. Therefore, they beat the disc. So blocking blinds down and shut Serene Venetian blind with a roller shutter backup when you are away from home!
It's not just the stolen valuables which are covered by the home insurance, it is the invasion of privacy (ransacked drawers, etc.), the injured. My colleague has changed the apartment after a burglary. I could never understand until it happened to me. Do not let it come so far and bend in good time!