9:25 p.m.
9:25 p.m.
Same fire, same minute: the Bryson Fire in Malibu, California, at about 9:25 p.m. Thursday, Oct. 15, 2026. Both apps listed it at 101.5 acres.
The short version
- At about 9:25 p.m. on Thursday, Oct. 15, we captured two wildfire-defense apps showing the Bryson Fire in Malibu, California. Both listed it at 101.5 acres.
- FireShield drew the burned area as a detailed outline that follows the ridges and canyons along Encinal Canyon Road.
- Another wildfire-defense company’s app drew it as a four-cornered shape with straight sides.
- Watch Duty, a nonprofit fire-alert app, showed the fire one minute earlier. Its outline has the same shape as FireShield’s.
- At a FireShield customer’s home near the Malibu fire, the system had already started on its own.
An automatic wildfire defense system has one job that matters more than any other: deciding when to start. It makes that decision from its picture of the fire. That picture is the map.
So when the Bryson Fire broke out in the Santa Monica Mountains above Malibu, California, on Thursday evening, we opened two wildfire-defense apps at the same minute and compared what each one showed.
The check: an independent Malibu fire map
To see which picture matched the fire, we checked a third app that isn’t trying to sell anyone a sprinkler system. Watch Duty is a nonprofit wildfire-alert app that many Californians already use during fires.
Watch Duty showed the Malibu fire at 101.5 acres, with the same detailed outline running from near Malibu Golf Club up toward the ridge. Its shape matches the one in the FireShield app.
Why the shape matters
FireShield starts on its own when a fire comes within the activation distance you set, and then waits out the delay you choose. That distance is measured against the fire as the system sees it.
A fire’s edge isn’t a neat polygon. It runs up canyons and along ridges, and that is how it gets close to houses. The more closely the map follows the real edge, the more reliable the start decision is.
A FireShield home near the Malibu fire
The FireShield screenshot above is from a customer’s phone. The banner reads “SYSTEM ACTIVE — Main House. Automatically activated.” No one pressed start: the system started on its own. The red STOP button stays on screen, so the owner can shut it off from the phone at any time.
What a screenshot can and can’t tell you
These are three screens captured at one moment. Apps refresh their maps at different times and open at different zoom levels, so a single capture isn’t a full test. What it does show is the picture each app was giving its user at that minute, while the fire was growing.
For the latest on the fire itself, including evacuation zones and shelters, see our Bryson Fire news coverage.
What to ask
- Where does your app’s fire outline come from, and how often does it update?
- Does automatic activation measure distance to the fire’s edge, or to a single point?
- Can I see the same map the system uses to decide when to start?
- Can I set the activation distance and the delay myself?
- Can I stop a running system from my phone, wherever I am?
FireShield makes one of the apps shown. Screenshots are shown exactly as captured, without cropping or editing. Watch Duty is not affiliated with FireShield and did not review this article. The customer’s name and address are withheld.