Well… yes and no.

My Wi-Fi router and security cameras are on a UPS. You’re going to have to wait a few hours after cutting the power for it all to shut down. And during that time I’m getting a constant stream of alerts on my phone that the power is off.

[edit] Oh, and I should probably have mentioned that my power arrives in an underground conduit to my breaker box, and my breaker box has a camera pointed at it that you can’t get to without setting off an intrusion alarm first.

With a properly set up modern security system, there isn’t really much short of an EMP that’s going to black out both the security cameras plus the hidden cameras in any timeframe reasonable to be effective for a burglary.

For that you need the human factor so that the warnings are being ignored by the time any burglary is attempted — or just move fast enough and disguised enough that nobody can catch you in time.

But these days with gait recognition being a thing, you’ll still probably be ID’d.