Your firewall guards the wires. Radio goes around it.
Cellular modems, badge readers and wireless links can reach your operation without ever passing through the firewall.
BOOK FIVE / A SECURITY LEADER’S GUIDE
Your Firewall Can't Hear Radio.
Can you hear the devices that talk around your firewall, and close their risky paths without breaking what they do?
The modems, badge readers and wireless links that walk right around your security.
The complete book. No form or registration.
THE THREE IDEAS
Start with three ideas.
Every story in this book grows from one of these.
A connection nobody owns is a door nobody locks.
Every radio link needs an owner, a reason, and someone who notices when it changes.
Done means two checks pass.
The risky path is closed. And the device still does its job. The door still opens. The alarm still calls out.
READ AT YOUR OWN PACE
Seven chapters. One blind spot in the air.
A letter from Eldad · How to read the stories
CHAPTER 01
Your Firewall Can't Hear Radio
It guards the wires. The air goes around it.
CHAPTER 02The Modem Nobody Listed
The connection nobody wrote down becomes the door nobody locks.
CHAPTER 03Five Ways In Through the Air
The easiest way around your firewall may already be bolted to the wall.
CHAPTER 04Listen Before You Touch
You can't protect a radio link by ignoring it.
CHAPTER 05Three Questions Before You Cut a Path
A suspicious connection isn't permission to break the operation.
CHAPTER 06Close the Path. Keep the Door Working.
Contain the risky path, not the building.
CHAPTER 07Ten Minutes With Security and Facilities
The blind spot exists because the job is split.
THE METHOD
Hear. Prove. Control.
What is talking over the air at this site?
A record of the devices and radio activity in the areas we monitor, side by side with what's happening on the network.
Which path could affect access, alarms, safety or operations?
Shows the evidence, the owner, what the device can reach, and a ranked plan.
Can we close one risky path without breaking the service?
Acts within your rules, then records the security check and the service check.
KNOW WHAT YOU ARE READING
The evidence labels.
Observed
NetOps IQ assessments and a controlled demonstration, anonymized. Demonstrations are labeled as demonstrations.
Sourced
Outside reporting from Reuters, the FBI and EPA, Toronto Police and ADAC, with linked notes.
Illustrative
Scenarios built to explain the method. The 4:12 a.m. pump controller and the photographs are illustrative.
Findavi listens to radio links. It does not jam or block the signals your devices depend on. Coverage for your radio types, readers and devices is confirmed during planning.
START WITH ONE BLIND SPOT
Findavi RF Blind Spot Assessment
A scoped, on-site, listen-only look at one badge-reader environment, one group of cellular controllers, one remote site or one wireless sensor network.
Request an assessmentThe assessment only listens, in Observe mode. Any later action needs separate approval.