Real entry methods, timing patterns, and deterrents that actually work — vs the ones that just make you feel better. Decades of criminology research plus interviews with convicted burglars tell a very different story than what the security industry wants you to believe.
By Johnny T.·March 2026·12 min read
Most people picture a burglar as someone in a black turtleneck, casing your house for weeks, waiting for the perfect window. That's a movie. The real version is less cinematic and significantly more depressing: it's usually someone who walked past your house, noticed something that made your place look easier than the next one, and acted within 60 seconds of that decision. No turtleneck. No plan. Just opportunity, recognized and taken.
Understanding that distinction — between the fictional professional and the actual opportunist — is the single most useful thing you can do for your home security. Because once you know what they're actually looking for, the countermeasures become obvious. And a lot of the stuff you've already spent money on starts to look like expensive decoration.
~65%
Of burglars are opportunistic, not pre-planned
8–12 min
Average time spent inside a home
34%
Enter directly through the front door
Chapter 1
How Burglars Actually Think
The three types — and why most aren't who you imagine
Criminologists who study residential burglary consistently find the same thing: the offender population isn't homogeneous. There are three rough categories, and the category matters a lot for what actually deters them.
Type 1: The Opportunist (most common)
No pre-planning. No surveillance. They're walking, driving, or riding through a neighbourhood and they notice an unlocked door, a car that hasn't moved in five days, or a house that clearly has nobody home right now. The decision is made in under a minute. They go in, take what's visible and portable — cash, a laptop, a game console, jewellery they spot immediately — and they're gone in under ten minutes. Noise or any sign of resistance sends them straight to the next street.
Research from the University of North Carolina at Charlotte's criminology department — Understanding Decisions to Burglarize from the Offender's Perspective, led by Joseph Kuhns, which surveyed 422 incarcerated burglars across North Carolina, Kentucky and Ohio — found that most couldn't describe a "plan" at all. They described recognizing an opportunity and taking it. About 41% said their burglaries were most often spur-of-the-moment; only around 12% said they typically planned in advance.
Where This Study Came From
We cite the UNC Charlotte survey throughout this article because it's the most detailed offender-interview data available on residential burglary. You should also know it was funded by the Alarm Industry Research and Educational Foundation, which is supported by the Electronic Security Association — the alarm industry's main trade body. So the most-quoted evidence that alarms and cameras deter burglars was paid for by the people who sell alarms and cameras.
That doesn't make it wrong. It was carried out by academic criminologists across three state prison systems, and its findings line up with other offender research. But it's a self-reported survey with an interested funder, and you won't see that disclosed on a single security company's website. Weigh it accordingly — and where we cite independent research below, we say so.
This matters because opportunists are deterred by friction — anything that makes your house look harder or riskier than average.
Type 2: The Semi-Professional (less common)
Does some reconnaissance — usually a day or two, not weeks. Might knock on the door pretending to be a delivery driver to confirm nobody's home. Has a routine and preferred targets (usually a specific type of house in a specific income bracket). More sophisticated entry techniques. Still not carrying lockpicks; more likely to use a dedicated kick-in tool or simply know which windows are typically flimsy. Usually sells to a fence with a pre-existing relationship.
Type 3: The Professional (rare)
Actually studies the target. Has a buyer lined up before the job. Has specific tools, specific skills. Targets high-value properties with specific items in mind — art, specific jewellery, financial documents. This is the movie burglar. They exist. They represent a tiny fraction of residential burglaries and are almost entirely irrelevant to the average homeowner's threat model.
The "Know Thy Enemy" Number
FBI crime statistics consistently show residential burglary with no forced entry at roughly 30–35% of all cases. That's one in three burglaries where the door was either unlocked, or so easy to open it barely counts as locked. Your first line of defence isn't a deadbolt — it's actually locking the door.
"The vast majority said that if a target looked too complicated or risky, they'd simply move to the next one. Nobody is married to your specific house."
— Summary from UNC Charlotte's "Understanding Decisions to Burglarize" study, 422 offender interviews
Chapter 2
What They See From the Street
The signals your house is broadcasting — and what they mean to the wrong person
Target selection for an opportunistic burglar happens in seconds and is based almost entirely on visual cues from the street or a quick walkup. Here's what they're actually reading:
Occupancy signals
The single biggest deterrent to a residential burglar is the possibility that someone is home. Not a security system. Not a camera. A light on, a car in the driveway, a TV flickering. The UNC Charlotte study found occupancy concern was the most frequently cited reason for abandoning or avoiding a target — more than cameras, more than dogs, more than neighbours. The Federal Bureau of Investigation's own figures point the same way: in 2019 it recorded roughly 291,000 daytime burglaries against about 196,000 at night. Burglars aren't avoiding the light. They're avoiding you.
The flip side: a driveway with no car, a dark house at 11am on a Tuesday, curtains all drawn the same way for three days straight, or mail and flyers visibly accumulating are all signals that say "nobody's home and they might not be back for a while." These are the houses that get hit.
Cover and concealment
Tall hedges next to the front door. A fence that blocks sight lines to the side of the house. A gate with a privacy screen. A garage that's positioned so the entry door isn't visible from the street. All of this sounds like privacy — and it is privacy. The problem is it provides privacy to the burglar too. The most dangerous approach vectors in any house are the ones not visible from neighbours or the street. Burglars know this, and they use it.
Visible rewards
A mountain bike leaning against the back gate. A luxury car in an unlocked garage. Amazon boxes piled up (signals: people with money who aren't home right now). A ring camera in the box it came in, sitting on the porch. New appliance boxes by the recycling bin. Any of these, visible from the street, changes the calculus on whether your house is worth the attempt.
Soft points they can see
Old single-pane windows with latches. A side door that's a hollow-core slab in an old frame. A basement window at ground level with no bars. A pet door large enough to reach through and hit an interior knob. A detached garage with a wooden door and an old padlock hasp. Experienced burglars read door and window quality the way a locksmith does — just with different intentions.
The "I Have an Alarm" Sticker Problem
Alarm company yard signs and window stickers are a mild deterrent at best, and potentially counter-productive. They signal: (a) there's probably valuables worth protecting in here, and (b) the owner is security-conscious enough to have an alarm but maybe not much else. A sign without visible cameras or solid doors is often read as "has sticker, may or may not have system." It's not zero value — but it's much less than people assume.
Chapter 3
Entry Methods That Actually Get Used
Not movies. Not Mission Impossible. What the data actually shows.
Forget lockpicks. Forget glass cutters. The entry-point breakdown below is drawn from Bureau of Justice Statistics figures and is widely reproduced across the industry; treat the exact percentages as approximate, because different compilations attribute them slightly differently. The shape of the data, though, is consistent everywhere and is the part that matters: almost everything happens at ground level, through a door or a window, using force or no tools at all. Second-floor windows account for roughly 2% of entries. Basements around 4%.
34%
Front Door
Either unlocked, or kicked in. A standard door-frame kick takes two seconds and a single forceful heel strike. Most residential door frames fail — not the lock, the frame and the strike plate screws.
23%
First-Floor Window
Unlocked is easiest. Older single-pane windows can be shimmed or popped. Sliding windows often lift off their tracks entirely with no tools. Almost always concealed from the street.
22%
Back Door
Less visible than the front, often cheaper construction, frequently has a glass panel adjacent to the knob. Sliding glass doors are routinely vulnerable to simple lift-and-pop or a bar in the track being missing.
9%
Garage Door / Side Entry
Attached garages with the interior door being a hollow-core slab are a major vulnerability. Older garage door openers can sometimes be opened with universal remotes. The side human-door on garages is often the weakest door on the property.
The kick-in problem specifically
A deadbolt is only as good as what it's anchored to. The standard residential door installation uses 3/4-inch screws into a soft-wood jamb — and when a 200-pound person kicks a door just below the knob, the entire frame splits in one strike. The bolt held. The wood around it didn't. This is why a high-security deadbolt paired with a flimsy strike plate is basically a false promise. The fix is a reinforced strike plate with 3-inch screws into the stud — a $15–$30 hardware investment that genuinely changes the physics of a kick-in attempt dramatically.
What about picking?
In the UNC Charlotte survey, roughly one in eight burglars reported picking a lock or using a key they had obtained earlier. Everyone else forced a door or window, or walked through one that was open. Federal figures tell the same story from the other direction: in 2019 about 37.8% of burglaries were recorded as unlawful entry involving no force at all.
Extremely rare in residential burglary. Takes skill, takes time, leaves no visible evidence which is actually a concern for a burglar (they prefer to know they got in, not wonder if a neighbour saw them standing at a door for two minutes). The locksport community spends enormous energy on picking — and essentially zero burglars do. Bump keys exist and were briefly a concern, but quality deadbolts with security pins have addressed this for years.
The Real Lock Upgrade Priority Order
First: Reinforce your door frame and strike plate (3-inch screws into studs). Cost: ~$20.
Second: Deadbolt on every exterior door — ANSI Grade 1 minimum. Cost: $50–$120.
Third: Window locks that actually engage (not just latches). Cheap and often overlooked.
Fourth: Solid-core door on the interior garage-to-house passage if you have an attached garage.
After all that: Consider upgraded deadbolts, smart locks, cameras.
Chapter 4
When It Actually Happens
The timing data will surprise you — it surprised us
Most people imagine burglaries happening at 2am under cover of darkness. That's the movie version again. Real residential burglary peaks at a very specific, very counterintuitive time: weekday business hours.
Bureau of Justice Statistics data shows the highest concentration of residential burglaries between roughly 10am and 3pm on weekdays. Think about why: that's when houses are most likely to be empty (people at work, kids at school), it's bright enough to see what you're doing, and a person walking up to a front door looks less suspicious in daylight than they do at midnight.
The 6pm–midnight window has elevated rates too — the evening departure window when people go out for dinner, entertainment, or errands. Late-night burglaries happen but are statistically much rarer, and when they do occur, they're more likely to be the semi-professional category who specifically targets sleeping households (a different and considerably more alarming crime profile).
Seasonal and Situational Peaks
Summer months see elevated rates — windows left open, irregular schedules, vacation absences.
Post-holiday period (late December into January) is a known peak — empty boxes advertising new electronics, plus cash-poor offenders post-holiday season.
After you post on social media that you're away is not a myth. Multiple studies have confirmed burglars actively monitor social media, especially in areas they operate in.
During neighbourhood events that pull residents away from their blocks (street fairs, games, local events).
Chapter 5
What Actually Works vs Security Theater
The honest breakdown — including the stuff that just makes you feel safer
This is the section that's going to hurt some feelings — and cost some companies some business. Here's the honest assessment of common residential security measures, based on what the criminology research actually shows about deterrence.
Measure
Verdict
Why
Reinforced strike plate (3-inch screws)
Actually Works
Dramatically increases kick-in resistance. Under $20. Most underrated security upgrade in existence.
ANSI Grade 1 deadbolt on every door
Actually Works
Real deterrent against kick-in when combined with a reinforced frame. Resists bump and basic pick attempts.
Visible security cameras (real ones)
Actually Works
Around 60% of surveyed burglars said they'd consider cameras when picking a target, and more than 40% said cameras would send them elsewhere. Key word: visible — see the note below on why that qualifier does most of the work.
Dogs (any size, audible)
Actually Works
Barking creates noise and uncertainty about occupancy. 65% of surveyed burglars said a dog would cause them to choose another target.
Motion-activated exterior lights
Actually Works
Eliminates cover of darkness at entry points, and lighting has the strongest independent evidence base in this whole table — though see the caveat below about what that research actually measured.
Timed interior lights when away
Actually Works
Simulated occupancy is a real deterrent. Smart plug timers are $10–$15 each and significantly change the visual signal a house gives from the street.
Alarm system (monitored)
Situational
Good deterrent before entry — less useful after. Average police response time in urban areas is 7–11 minutes. Most burglaries are complete in 8–12 minutes. The yard sign may matter more than the system itself.
Smart locks with apps
Situational
Remote access control is genuinely useful. Security against physical entry is roughly equivalent to a Grade 1 deadbolt — which is fine, but not an upgrade. Main vulnerability shifts to digital (weak PIN, Bluetooth intercept). Not better than a quality keyed deadbolt; different trade-offs.
Alarm company yard sign / sticker only
Minimal Effect
Some deterrent to the least sophisticated opportunist. Experienced burglars are largely unimpressed. Not useless — but nowhere near as effective as people assume.
Fake security cameras
Security Theater
More experienced burglars identify fakes easily (no IR glow at night, cheap housings, no cable runs). May give homeowner false confidence while providing minimal real deterrence.
Door chain/bar locks on their own
Security Theater
Adds friction when you're home but does nothing to frame integrity. The frame is what fails — the chain doesn't change that.
High-security padlock on a flimsy hasp
Security Theater
This is an NPZ classic complaint. Abloy on a $4 hasp is security for your lock, not your door. The hasp will be pried off in seconds. The lock is irrelevant.
"I've never picked a lock in my life. You kick the door, or you find a window. That's it. Nobody's got time for anything else."
— Quoted in "Understanding Decisions to Burglarize," UNC Charlotte (composite from multiple interviews)
Why "Visible" Does All the Work
The best independent evidence on cameras isn't an offender survey at all — it's a systematic review by Piza and colleagues published in 2019, covering forty years of closed-circuit television studies. Its finding is sharp: actively monitored camera systems were associated with a crime reduction of roughly 15%, while passive, record-only systems showed no statistically significant effect.
That fits everything else on this page. A camera doesn't deter because it records. It deters because it signals that somebody might respond — and an offender has to notice it, from a distance, before they've committed to your house. A camera tucked discreetly under an eave has given up the thing that made it work. Mount it where it's seen from the pavement, and prefer the ones that do something visible when triggered: a spotlight, a siren, a light that snaps on.
Lighting: Good Evidence, With an Asterisk
You'll see it claimed that better outdoor lighting cuts property crime by 30% or more. There's real research behind that, and it's some of the best in the field. Welsh and Farrington's systematic review of thirty-two studies found that improved street lighting reduced crime by more than 20% on average across the higher-quality evaluations. Chalfin and colleagues then ran the first randomised controlled trial of lighting — temporary lights assigned at random to New York City public housing developments in 2016 — and found at least a 36% reduction in nighttime outdoor index crime, an effect that a follow-up study found still held three years later.
Here's the asterisk, and it matters. All of that is permanent area and street lighting in public space — not a motion-activated floodlight on a private house. Welsh and Farrington's American results were genuinely mixed: of eight US evaluations, four found a reduction and four found no effect. And the mechanism researchers propose — more people out, more eyes on the street, a signal of community investment — is not the mechanism a motion light on your garage is using.
None of which means motion lighting doesn't work. Removing concealment at a dark side door is obviously sensible, and a light that snaps on is a signal of detection rather than just illumination. It means the impressive percentages you'll see quoted were measured on a different intervention, and anyone attaching them to a $30 floodlight is borrowing credibility that study didn't lend them.
Chapter 6
Your Actual Action Plan
Prioritized by real-world impact, not by what's easiest to sell you
Based on everything above, here's the priority order that criminology research actually supports. This isn't the order that makes home security companies the most money. It's the order that actually reduces your risk.
Phase 1: The fundamentals ($50–$100 total)
Reinforce every exterior door frame with a proper strike plate and 3-inch screws into the stud — not just the door jamb. Add a Grade 1 deadbolt to any door that doesn't have one. Lock your windows, including secondary latches on double-hung and sliders. These three things address the actual entry methods used in the majority of break-ins and cost almost nothing compared to a "smart home security system."
Phase 2: Reduce occupancy signals
Smart plugs on a few interior lights set to randomized schedules. Stop letting mail or packages accumulate visibly. If you're going to be away, tell a neighbour — a car that moves in the driveway once in a while is worth more than a yard sign. Don't post vacation announcements on public social media until you're back.
Phase 3: Eliminate cover
Trim hedges and shrubs away from entry points so they can't be used for concealment. Make sure side-of-house and back doors are visible to at least one neighbour's sight line. Motion-activated lights on every dark approach path to the house — especially side and back. This one is chronically underrated.
Phase 4: Then do the camera and alarm stuff
Visible cameras at main entry points are a real deterrent and provide evidence value. A monitored alarm adds another layer. These are genuinely useful — they're just not as foundationally important as the first three phases, and people tend to skip the cheap fundamentals in favour of the expensive options because the expensive options feel more sophisticated. They're not. A deadbolt in a reinforced frame beats a smart lock in a stock $40 frame every single time.
The One Thing That Matters Most
Make your house look like it costs more effort than the next one. That's it. That's the entire theory. You don't need to make your home impenetrable — you need to make it the second choice. Most burglars are choosing between multiple options on a street or in a neighbourhood. Be the house that's not worth the trouble, and the house that makes it obvious why.
Chapter 7
Frequently Asked Questions
The questions people actually ask us about this
Partly, and the qualifier matters. In the UNC Charlotte survey around 60% of burglars said they consider cameras when selecting a target and more than 40% said a camera would send them elsewhere — but that study was funded by the alarm industry. The stronger independent evidence is a 2019 systematic review by Piza and colleagues, which found that actively monitored camera systems reduced crime by roughly 15% while passive record-only systems showed no statistically significant effect. A camera deters when it is visible from a distance and signals a response. One hidden under an eave mostly just records.
Daytime, on weekdays — not the middle of the night. The concentration is roughly between 10am and 3pm, when houses are most likely to be empty. FBI figures for 2019 recorded about 291,000 daytime burglaries against roughly 196,000 at night. Daylight also makes someone walking up to a front door look less suspicious than they would at midnight.
Overwhelmingly through a ground-level door or window, using force or no tools at all. Bureau of Justice Statistics figures put the front door at about 34% of entries, first-floor windows at 23%, back doors at 22% and garages at 9%. Second-floor windows are around 2%. In 2019 roughly 37.8% of burglaries involved no force whatsoever — an unlocked door or an open window.
Very rarely. In the UNC Charlotte survey only about one in eight reported picking a lock or using a key they had obtained earlier. Lock picking is slow, requires practice, and leaves someone crouched at a stranger's door in full view. Kicking a door takes about two seconds. This is why reinforcing the door frame matters more than upgrading the cylinder.
Weakly. Signs alone deter a minority of offenders — surveys generally put it around a quarter, well below a visible camera or evidence that someone is home. The UNC data found 83% of burglars would try to determine whether an alarm was actually present before attempting a break-in, which is exactly the check a sign without a system fails. It is not worthless, but it is the cheapest layer and the easiest to see through.
Reinforce your door frames with a proper strike plate and three-inch screws driven into the stud. It costs under $20 per door and addresses the most common forced-entry method there is. A deadbolt fails at the frame, not the bolt — when someone kicks a door, the softwood jamb splits and the whole strike plate leaves with it. This is the cheapest meaningful upgrade in home security and almost nobody does it.
Yes, and it is better supported than most of what gets sold. Occupancy concern was the most frequently cited reason burglars gave for avoiding or abandoning a target — ahead of cameras, dogs and neighbours. Randomised smart plugs on a couple of interior lights cost $10 to $15 each and change the signal your house sends from the street. A car that moves in the driveway occasionally is worth more than a yard sign.
No. Burglary has been falling for decades and continues to fall. The FBI recorded 779,542 burglaries in 2024, down about 8% on the previous year, against more than three million a year in the early 1990s. Perception runs well ahead of the data here, partly because home security is marketed on fear. The risk is real but it is lower than it has been in most people's lifetimes.
Sources & Method
Offender data. Kuhns et al., Understanding Decisions to Burglarize from the Offender's Perspective, University of North Carolina at Charlotte — a survey of 422 incarcerated burglars in North Carolina, Kentucky and Ohio, funded by the Alarm Industry Research and Educational Foundation. Self-reported, and funded by an interested party; we cite it because it is the most detailed data of its kind, and we flag the funding wherever we use it.
Independent research. Piza, Welsh, Farrington and Thomas, 2019 systematic review of closed-circuit television and crime, for the monitored-versus-passive distinction. Welsh and Farrington's street lighting review, and Chalfin, Hansen, Lerner and Parker's randomised experiment in New York City, for the lighting evidence — with the caveat that both measured public area lighting rather than residential motion floodlights.
Official statistics. Federal Bureau of Investigation Uniform Crime Reporting figures for burglary volumes, the daytime and nighttime split, and forcible versus unlawful entry. Bureau of Justice Statistics for the entry-point breakdown, which is widely reproduced and should be treated as approximate.
What we don't do. Where a figure comes from a company selling security products, we say so. Where a number is widely circulated but we can't establish where it came from, we leave it out rather than repeat it.
