Before attempting to reinforce an apartment door, speak to the property owner. If the door hasn’t been updated in a while, the landlord may offer to cover the cost of a professional locksmith or your expense of this security update. Rekeying a door can be a costly and lengthy affair, so try low-impact, inexpensive tricks—like installing a deadlock or a door jammer—first.

Generally, hinged French patio doors are considered more secure than sliding glass doors. French doors typically feature a more robust, solid frame that can support multi-point locking systems and deadbolts, securing the door at several points and making them harder to break into. In contrast, sliding doors often rely on a single lock and operate on tracks, which can be a security vulnerability. While you can add security bars and other features to enhance a sliding door's security, a well-made French door is often more secure on its own. Ultimately, the overall security of any patio door depends on the quality of its materials, the locking hardware, and proper installation.

While doggie doors are convenient for pet owners, they do offer a few drawbacks. For instance, they’re small enough that unwanted critters could come into the house, such as raccoons, snakes, rats, and insects.

They’re also large enough that small children can escape through them, which can be a serious concern to parents of young children.

Finally, doggie doors can make it difficult to regulate your home’s temperature because they constantly let in hot or cold outside air.

In general, keyless door locks are considered safe, and their security depends on the type and quality of the lock. They cannot be picked like a traditional lock and often include added features like biometric access, PIN codes, and smartphone connectivity, which can make them more secure. However, they are not without risks. Potential vulnerabilities include hacking for Wi-Fi-connected models, battery failure, power outages, and technical malfunctions. To maximize security, it is important to choose a reliable brand, stay on top of software updates, and perform regular maintenance. While the risks are different, keyless locks are not considered more dangerous than traditional locks.