A homeowner installs a visible security camera and alarm system sign, but the deadbolt's strike plate is attached with standard ½-inch screws into the door trim. A burglar targets the home. What is the most likely outcome?
AThe camera deters the burglar, who chooses a less conspicuous target
BThe alarm sign convinces the burglar the risk is too high to proceed
CThe burglar kicks the door in with a single blow — the strike plate screws pull out of the soft trim regardless of the deadbolt
DShort screws are only a problem with older hollow-core doors; modern solid-core doors are immune
The most common forced-entry failure point is not the lock but the connection between the strike plate and the frame. Standard ½-inch screws bite only into soft trim wood and pull straight out with a single kick, even when the bolt is fully extended. Deterrents reduce opportunistic crime but don't stop a burglar who has already decided to enter. The physical barrier is the foundation everything else depends on.
Question 2 Multiple Choice
What is the underlying logic that determines whether a home security measure is effective against opportunistic burglary?
AWhether the measure is expensive enough that burglars assume the homeowner has valuables worth the extra effort
BWhether the measure makes entry slow, noisy, or conspicuous enough that the attacker's cost-benefit calculation shifts toward leaving
CWhether the measure was installed by a licensed security professional and meets local building codes
DWhether the measure covers the statistically most common burglary method in your zip code
Most residential burglaries are opportunistic, not targeted. Burglars abandon attempts that take more than a few minutes or risk drawing attention. The goal isn't to make entry impossible — it's to raise the cost of the attempt enough that the attacker leaves. This logic applies to every layer: reinforced frames slow entry, lights eliminate concealment, alarms raise consequence risk. All of it is cost-raising.
Question 3 True / False
Smart locks are less secure than traditional deadbolts because their digital components introduce vulnerabilities that undermine the physical lock mechanism.
TTrue
FFalse
Answer: False
Quality smart locks use the same ANSI-grade deadbolt mechanisms as traditional locks — the physical security is equivalent. They also add audit trails, remote access, and auto-locking. The actual weak point with smart locks is usually the home Wi-Fi network or weak account passwords, not the lock hardware itself. Smart locks are supplements that add convenience and monitoring, not downgrades.
Question 4 True / False
A security measure that makes forced entry take five extra minutes can be highly effective against opportunistic burglary even if it cannot stop a determined attacker indefinitely.
TTrue
FFalse
Answer: True
The goal of home security is not impermeability — it's raising the cost of the attempt. Most burglars are opportunistic and will abandon attempts that take too long, risk noise, or attract attention. An extra five minutes of resistance, combined with visible deterrents and detection, is often sufficient to cause an attacker to abandon the attempt and move on.
Question 5 Short Answer
Why does replacing standard strike plate screws with 3-inch screws have such a disproportionately large impact on door security relative to its cost?
Think about your answer, then reveal below.
Model answer: Because the strike plate connection is the actual failure point in most kicked-in doors, not the lock itself. Standard screws bite only into soft trim wood and pull out with a single kick even when the bolt is extended. Three-inch screws reach the structural stud behind the frame, converting what was a one-kick failure into a sustained, noisy assault. The deadbolt is rarely the weak link — the frame connection is.
This is a classic case where understanding the actual failure mechanism reveals a high-leverage, low-cost fix. The deadbolt and strike plate together are only as strong as the weakest link in the chain — and the screws are that link. A $5 hardware fix can outperform a $200 smart lock upgrade when the underlying structural vulnerability is unaddressed.