RepLock
The Journal
The 12-Point Home Security Checklist to Run Before You Travel
A house that's obviously empty for two weeks is a different risk profile than one occupied daily. Twelve concrete things to check before you leave, from lock grade to camera retention to old keypad codes.
Can Smart Locks Be Hacked? Separating Real Risk From Hype
Yes, in specific, mostly-preventable ways — and no, not by the dramatic "hacker unlocks your door from across the world" scenario most headlines imply. What's actually at risk, and how to close it.
Deadbolt Won't Turn or Budge? Common Lock Problems and When They Mean "Replace It"
Most stuck deadbolts are a misaligned strike plate, not a broken lock. Here's how to diagnose the actual cause before assuming replacement is necessary — and the few cases where it genuinely is.
Master Key Systems Explained: Keyed Alike vs. Keyed Different
One key that opens every unit, versus one key per unit plus a master that opens all of them — the difference matters for landlords and property managers, and it's set at the pin level, not the key.
How Many Security Cameras Does a Small Business Actually Need? Coverage Planning Basics
Not "as many as the budget allows" — coverage planning starts from entry points and cash-handling areas, then fills gaps. A worked example for a small retail storefront, plus the storage cost of getting it right.
NVR vs. Cloud Storage for Security Cameras: Cost and Reliability Compared
A local NVR is a one-time storage cost with no recurring bill; cloud storage is a subscription that keeps footage safe even if the camera itself is stolen. Neither is universally right — here's the actual trade-off.
Safe Placement 101: Why Where You Put Your Safe Matters as Much as Its Rating
A TL-15-rated safe sitting unbolted in an unfinished basement corner is easier to defeat than its rating implies — an attacker just takes the whole safe. Placement decisions that actually matter.
Do Video Doorbells Actually Deter Burglars? What They Do and Don't Do
A video doorbell adds visibility and a record, not a physical barrier. Here's an honest breakdown of what it actually accomplishes, where it falls short, and how to set one up so it's doing real work.
UL Fire Rating vs. Burglary Rating: Which Safe Do You Actually Need?
A safe's fire rating and burglary rating are two completely independent tests defending against two completely different threats. Here's what each one actually means, and how to pick both.
What Focal Length Do You Need to Cover Your Driveway? Field of View Explained
A 2.8mm lens sees 63 feet wide at 10 meters; a 12mm lens sees under 15 feet. Wider isn't automatically better — here's how focal length trades scene width for identifiable detail, with real numbers.
How Much Storage Does a 4-Camera 1080p System Need? A Worked Example
A 4-camera 1080p system recording 24/7 needs about 4.9TB for a 30-day retention window — worked through with the actual numbers, plus what changes at 60 and 90 days, and what 4K does to the math.
How Strong Is Your Password, Really? The Entropy Math Behind Crack Times
An 8-character password with every character type falls in 3.5 days against a fast offline attack. 12 plain lowercase letters takes 55 days. The math behind why length usually beats complexity — worked through with real numbers.