Shelter · Home Security
Security cameras. Where to put them, what to record, and what the law says.
Placement, resolution, wired vs. wireless, local vs. cloud storage, night vision, privacy considerations, and how to build a camera system without overspending or overcomplicating.
By Dan Whelan, founder of New World Survival
Researched from government agencies, university extension services, and other published sources. See our sources
What cameras do
A camera is a detection and evidence layer, not a guard.
A security camera does two things: it deters people who see it, and it records evidence when something happens. In a survey of 422 incarcerated burglars, about half (50.3%) named outdoor cameras as something that would keep them from a target, close to indications of an alarm (53.3%).1 That makes camera placement and visibility at least as important as resolution or brand.
But a camera cannot stop someone who ignores it. It cannot lock a door, call the police, or chase anyone away. The footage is only useful if it is stored somewhere the intruder cannot take or disable, and if the image quality is good enough to identify a face or a license plate at the actual distance involved.
The practical difference between a useful camera system and an expensive decoration comes down to three decisions: where you mount it, how you store the footage, and whether it stays connected when someone tries to knock it offline.
Placement
Where to point them and what people miss.
In a Chula Vista police study of burglarized homes, the way in was a door 52% of the time and a window 44% of the time, and 65% of entry points were at the back or side of the house. Placement should follow where entries actually happen, not where cameras look most impressive.2
Front door
Mount at roughly 48 inches, angled straight ahead rather than downward. This height captures faces directly for identification. A doorbell camera serves the same purpose if positioned correctly.
Priority: First camera to install. Covers the most common entry point and records every visitor.
Back and side doors
Mount at 8 to 10 feet, angled 15 to 30 degrees downward. Back and side entries are less visible from the street, and in the Chula Vista study they were the way in 65% of the time.2
Priority: Second camera. Side gates and rear entries are common approach paths.
Driveway and garage
Mount at 8 to 10 feet. A driveway camera captures vehicle plates and approach behavior. A garage interior camera covers a common entry point, since attached garages often have weaker interior doors.
Priority: Third camera. Especially important if the garage connects to the house.
Main hallway and staircase
Mount at 7 to 8 feet. An indoor camera in the main corridor catches movement between rooms. If someone bypasses the perimeter cameras, this is the fallback that records them inside the house.
Priority: Optional but valuable. Keep indoor cameras out of bedrooms and bathrooms.
Five blind spots people miss
Side yard between the house and the fence, often used to reach back windows unseen.
Above the garage door, where the gap between driveway and front-door cameras creates a dead zone.
Backyard fence line, where someone can enter from a neighbor's yard without approaching from the street.
Second-floor windows accessible from a porch roof, balcony, or tree.
Mudroom or laundry entry, especially when it faces a shared alley or service path.
Mounting tip: Mount outdoor cameras under eaves or a small overhang to protect the lens from rain and direct sun. Before final mounting, test the camera in the morning and afternoon to check for glare. The 2.4 GHz WiFi band provides better range than 5 GHz for outdoor cameras, so connect to that network if your router offers both.2
Image quality
Resolution and night vision explained.
Higher resolution captures more detail at a distance, but it also uses more storage and bandwidth. Night vision type determines whether you get color or black-and-white footage after dark. Match both to the actual distance and lighting at each camera location.
Resolution
1080p (2 MP)
1920 x 1080 pixels. Identifies faces within 10 to 15 feet. Low storage and bandwidth requirements. The most common resolution in budget cameras.
Best for: Indoor cameras, doorbell cameras, and any location where the subject is close to the lens.
2K / 4 MP
2560 x 1440 pixels. Clarity extends to 20 to 30 feet. Moderate storage impact. A good middle ground between detail and resource use.
Best for: Garages, driveways, medium-sized yards. The sweet spot for most outdoor residential cameras.3
4K / 8 MP
3840 x 2160 pixels. Useful detail beyond 50 feet. High storage and bandwidth requirements; works best with H.265 compression and wired connections.
Best for: Large properties, long driveways, parking areas. Overkill for most indoor or short-range use.3
The practical test
Stand at the farthest point you need the camera to cover. If a 1080p camera can identify a face at that distance, you do not need 4K. Higher resolution costs more in cameras, storage, and bandwidth, and provides no benefit at close range.
Rule of thumb: 1080p indoors and at doorways, 2K for yards and garages, 4K only when you need detail past 50 feet.
Night vision
Infrared (IR)
Invisible IR LEDs illuminate the scene. Produces black-and-white footage. Works in total darkness with a range of 80 to 130 feet. Least expensive and most discreet.
Best for: Long perimeters over 100 feet, locations where a visible spotlight is unwanted, and budget systems.4
Starlight
Uses a larger sensor to amplify ambient light from streetlights, porch lights, or moonlight. Produces muted color footage without a spotlight. Needs at least some ambient light to function.
Best for: Driveways and yards with existing lighting where you want color footage without adding a spotlight.4
Full-color with spotlight
An integrated white LED spotlight activates on motion, producing full-color footage. Works in complete darkness with a range of 30 to 60 feet. Also functions as a visible deterrent.
Best for: Front doors, back doors, and any entry point where color identification and deterrent lighting both matter.4
Connection types
Wired vs. wireless and the jamming problem.
The choice between Power over Ethernet (PoE) and WiFi affects reliability, video quality, and vulnerability to interference. Both work; the right choice depends on your property, your budget, and how many cameras you need.5
Wired (PoE)
A single Ethernet cable carries both power and video data. No WiFi dependency, no battery to recharge, no bandwidth competition with other devices in the house. Supports 4K video without buffering.
Upfront cost: Higher. Requires running Ethernet cable, a PoE switch or NVR, and possibly professional installation for long runs. Cable runs up to 100 meters (328 feet).
Reliability: Immune to WiFi jamming and interference. Continues recording during internet outages when paired with local storage.
Best for: Homeowners with 4 or more cameras, large properties, and anyone who wants a system that cannot be disabled wirelessly.
Wireless (WiFi)
Connects to your home WiFi network. Battery-powered models need no wiring at all. Plug-and-play setup, often ready in under an hour. Most consumer-grade cameras use this connection.
Upfront cost: Lower. No cabling, no switch, no NVR required. Battery models need recharging every 2 to 6 months depending on activity.
Reliability: Dependent on WiFi signal strength and bandwidth. Susceptible to interference and jamming. Video quality may drop when bandwidth is congested.
Best for: Renters, small properties, 1 to 3 camera setups, and anyone who needs same-day installation without running cable.
WiFi jamming is a documented vulnerability
WiFi jammers are inexpensive and electronically simple. LAPD's Wilshire division has documented burglary patterns using WiFi jammers, with organized teams using lookouts and targeting homes with wireless camera systems. Similar incidents have been reported in Minnesota and other states.6
Countermeasures include wired cameras, local storage on an SD card or NVR (so footage records even if the network is down), cellular backup connections, and cameras with built-in battery and onboard storage that continue recording independently of the network.
Storage options
Local vs. cloud and what happens when the camera is stolen.
Where your footage is stored determines whether you still have evidence after a break-in, how much you pay over time, and whether your system keeps recording during an internet outage.7
Local: SD card
Footage is stored on a microSD card inside the camera. About $60 upfront, roughly $140 over five years including periodic card replacements. Records during internet outages.
Theft risk: If someone takes the camera, they take the footage with it.
Best for: Budget systems, areas with unreliable internet, and locations where theft of the camera itself is unlikely.
Local: NVR or home base
A network video recorder or base station stores footage from multiple cameras on a hard drive inside your home. About $150 to $400 upfront. Records continuously regardless of internet status.
Theft risk: If someone takes or destroys the NVR, all footage from all cameras is lost. Place it in a locked closet, basement, or out of sight.
Best for: Systems with 4 or more cameras. Provides centralized playback and long retention without monthly fees.
Cloud
Footage is uploaded to the manufacturer's servers. Roughly $3 to $20 per month per camera, or about $600 over five years for a single camera. Footage is safe even if the camera is stolen or the house is damaged.
Dependency: Requires a working internet connection. If the internet goes down or is jammed, new footage is not uploaded until the connection returns.
Best for: Situations where theft of the camera is a real concern, and for remote access to footage from anywhere. The FTC recommends enabling two-factor authentication on all cloud camera accounts.8
Hybrid
Local storage as the primary system, with cloud backup enabled for motion-triggered events only. This keeps subscription costs low because you are uploading clips rather than continuous footage, while protecting the most important recordings offsite.
Why it works: The local system captures everything. The cloud backup catches the clips that matter most. If the camera or NVR is stolen, the triggered events are still in the cloud.
Best for: Most homes. The best balance of cost, reliability, and evidence protection.7
Five-year cost comparison for a single camera: SD card storage runs roughly $140 total, a home base station roughly $150 to $190, an NVR roughly $485 or more, and cloud-only roughly $600. Hybrid costs vary depending on which events trigger cloud uploads, but typically run $200 to $350 over five years.7
Privacy and law
What you can record, what you cannot, and what varies by state.
Video recording on your own property is broadly legal in the United States. Audio recording has stricter rules. Where your camera points and whether it records sound are the two areas where homeowners most commonly run into legal issues.9
Video rules
Your own property: Recording video of your yard, driveway, front porch, and the public street visible from your property is legal in all 50 states.
Indoor cameras: Legal in common areas of your own home. Keep them out of bedrooms, bathrooms, and guest rooms where people have a reasonable expectation of privacy.
Neighbor's property: Do not point cameras directly at a neighbor's windows, backyard, or private spaces. Incidental capture of a shared fence line or a public sidewalk is generally acceptable; deliberately surveilling their home is not.9
Audio rules
One-party consent (most states): If you are a participant in the conversation, or if you are recording on your own property with notice, audio recording is generally permitted.
Two-party consent states: California, Delaware, Florida, Illinois, Maryland, and several others require all parties to consent to audio recording. In these states, outdoor cameras with active microphones can create legal exposure if they record conversations without the speakers' knowledge.9
Practical step: If you are in a two-party consent state, disable audio recording on outdoor cameras, or enable it only on the doorbell camera where visitors can see a notice.
Local requirements: At least 15 states have specific laws governing residential security cameras, and some counties require registration of security systems. Check your state and local regulations before installing. Suffolk County, New York, for example, requires security system registration.9
Court access: Law enforcement can obtain footage from cloud-based camera providers through a subpoena or warrant. If this is a concern, local-only storage gives you sole physical control of the recordings.
Before you buy
Questions to answer before you shop.
Answering these first prevents the most common buying mistakes: overpaying for resolution you do not need, choosing storage that leaves you vulnerable, or creating a legal issue with audio recording.
How many entry points and approach paths does your property have?
Walk the property and count: front door, back door, side gates, garage, accessible windows. This tells you how many cameras you need and where they should go.
What is the farthest distance each camera needs to cover?
This determines resolution. If every camera covers 15 feet or less, 1080p is sufficient. If you need to read a license plate at the end of a long driveway, you need 2K or 4K at that location.
Can you run Ethernet cable to each camera location?
If yes, wired PoE is more reliable and immune to jamming. If running cable is impractical (rental, finished walls, long distances without conduit), WiFi is the realistic option. Consider wired for at least the most critical cameras.
What happens to the footage if the camera is stolen?
If all footage is on an SD card inside the camera, a thief who takes the camera takes the evidence. Cloud backup or a hidden NVR solves this. Decide before you buy which scenario you are protecting against.
Does your state require two-party consent for audio recording?
If so, disable audio on outdoor cameras or post clear notice. California, Florida, Illinois, and Maryland are among the states with strict audio recording laws. Check before you enable the microphone.
What is your total monthly budget for subscriptions?
Cloud storage for three cameras can cost $10 to $60 per month depending on the provider. Local storage eliminates that cost entirely. Add up the subscription cost over three years before comparing equipment prices.
Common mistakes
Five mistakes that waste money or leave gaps.
Buying 4K cameras for every location
4K resolution provides no benefit at a front door where the subject is 3 feet away, but it quadruples storage requirements and often demands more bandwidth than a typical home WiFi network can support across multiple cameras. Match resolution to the actual distance each camera covers.
Relying entirely on WiFi cameras with cloud-only storage
If your internet goes down, gets jammed, or the power fails, a WiFi camera with no local storage stops recording entirely. The footage from before the outage may already be in the cloud, but everything during the outage is lost. At minimum, choose cameras with onboard SD card slots as a local fallback.
Mounting cameras where they can be reached from the ground
A camera mounted at 5 feet on a porch post can be ripped off, covered, or turned. Mount at 8 to 10 feet, ideally under an eave where reaching it requires a ladder. If you cannot mount high, use a camera with onboard storage and cloud backup so the footage survives even if the camera does not.
Ignoring the audio recording laws in your state
Many cameras ship with microphones enabled by default. In two-party consent states, recording a conversation on your porch or driveway without the speaker's knowledge can create legal liability. Check your state law and disable audio on outdoor cameras unless you post clear notice or are in a one-party consent state.
Never checking the footage until something goes wrong
A camera that has been recording a bush blowing in the wind for three months is filling up storage with motion alerts you have been ignoring. Review a few clips weekly, adjust motion zones to reduce false triggers, and verify that night vision is actually capturing usable footage at each location. A camera you never check is a camera you may discover was not working when you need it most.
Related guides
Cameras are one layer.
A camera records what happens. The layers in front of it determine how much there is to record: good locks, good lighting, and daily habits that reduce opportunity.
The Layers of Home Security
The full framework. Cameras are one layer among several; context for every upgrade.
Alarm Systems
Monitored vs. self-monitored, sensors, and false alarm prevention. Cameras and alarms work best together.
Lighting and Visibility
Motion sensors, lumen ranges, and placement. Better lighting means better camera footage, especially with starlight night vision.
Daily Security Habits
The routines that reduce opportunity. Cameras catch what happens; habits prevent it from happening.
Common questions
The questions that come up most.
Where should I place security cameras around my home?
Start with the locations where break-ins are most likely. In a Chula Vista police study of burglarized homes, the way in was a door 52% of the time and a window 44% of the time, and 65% of entry points were at the back or side of the house. Place your first camera at the front door at about 48 inches high, angled straight ahead for face identification. The back door, side gate, and driveway are next in priority. Mount outdoor cameras at 8 to 10 feet, angled 15 to 30 degrees downward. Common blind spots that people miss include the side yard, above the garage door, the backyard fence line, second-floor windows accessible from a roof or porch, and the mudroom or laundry entry.
Should I choose wired PoE cameras or wireless WiFi cameras?
It depends on your priorities and property size. Wired Power over Ethernet cameras are more reliable because they do not compete for WiFi bandwidth, support higher video quality including 4K, and are immune to WiFi jamming. WiFi cameras are easier to install, cost less upfront, and work well for renters or small properties. If you have more than eight cameras or need to cover a large area, wired PoE is generally the better investment. WiFi cameras have a documented vulnerability to inexpensive WiFi jammers, which have been used in targeted burglaries in multiple U.S. cities. A wired camera with local storage eliminates that risk.
Is cloud storage or local storage better for security camera footage?
Both have trade-offs. Cloud storage keeps footage safe even if the camera is stolen or destroyed, but it costs roughly $5 a month for a single camera and more for whole-home plans, and it depends on your internet connection. Local storage using an SD card, a home base station, or a network video recorder has a higher upfront cost but much lower long-term expense, and it continues recording during internet outages. However, if someone steals the camera or the recorder, the footage goes with it. The best approach for most homes is a hybrid: local storage as the primary system with cloud backup enabled for motion-triggered events, which keeps subscription costs low while protecting critical footage.