Turning Off Your Phone Weekly: The FBI's New Security Advice

You might have followed the same habit for years: your phone slows down, you restart it, and it runs fine again. And while that trick still works for performance issues, it’s no longer enough when it comes to cybersecurity.

Both the FBI and the NSA are sending a clear message: mobile devices are now top targets for cybercriminals, and protecting them requires more than the occasional reboot. At TecnetOne, we see this every day—your phone has become the main entry point to your digital life, and securing it is just as crucial as protecting your work computer.

Your Smartphone Is No Longer an Accessory—It’s Your Most Valuable Device

Think of everything stored on your phone:

1. Personal and work conversations
   
   
2. WhatsApp, Telegram, and email
   
   
3. Banking apps and authentication codes
   
   
4. Photos, documents, and IDs
   
   
5. Access to social media and corporate accounts

You’re basically carrying your entire digital identity.

That’s why, when the FBI and NSA agree that phones must be treated as critical devices, they’re speaking from experience: spyware that activates microphones and cameras, banking trojans that overlay apps, perfectly crafted phishing SMS messages, and even zero-click malware that doesn’t require any interaction to infect you.

The FBI’s Advice: Power Off Your Phone Once a Week

The FBI’s cybersecurity division now gives a very specific recommendation: fully turn off your phone at least once a week.

But why isn’t a simple restart enough?

Because many modern attacks—especially zero-click exploits—don’t require your interaction to activate.

What Are Zero-Click Attacks?

These are threats that exploit vulnerabilities in system apps like:

1. The photo viewer
   
   
2. Messaging services
   
   
3. Media preview tools
   
   
4. Internal OS components

If your device has an unpatched vulnerability, an attacker can exploit it without you tapping anything. In some cases, the malware only lives in your RAM, meaning it disappears when the device is fully powered off.

A complete shutdown clears temporary sessions and forces the attacker to start from scratch. It’s not a magic fix, but it’s a simple, free, and effective barrier against increasingly common threats.

Read more: Hackers Leaked 50,000 Mexican Credentials on .gob.mx Sites

Restarting ≠ Powering Off

Restarting does not clear certain memory processes or active sessions the way a full shutdown does—especially not malware designed to auto-relaunch on boot.

Here’s the difference:

1. Restarting: Closes windows, resets some processes
   
   
2. Shutting down: Closes the house, resets all connections, and clears memory-resident threats

As we put it at TecnetOne: restarting is like closing the windows; powering off is like locking the entire house.

Why This Habit Matters Now More Than Ever

The mobile ecosystem—and the attackers targeting it—has changed dramatically. Today, there are threats that:

1. Survive restarts
   
   
2. Reinstall themselves automatically
   
   
3. Hide within normal-looking settings
   
   
4. Install via fake apps

Some of the most common risks:

1. Fake apps that look legitimate
   Banking clones, photo editors, or utilities that secretly install spyware.
   
   
2. Hidden profiles or system configs
   Allow attackers to intercept traffic, control networks, or tweak core settings.
   
3. Over-permissioned apps
   Apps you trust that quietly access your mic, camera, or location because you allowed it once—without thinking.
   
4. Persistent malware
   Threats that relaunch every time you boot up your phone.
   
   
5. Credential theft
   Once your passwords are stolen, a reboot won’t undo the damage.

Powering down once a week helps, but it’s just one piece of the larger mobile security puzzle.

Changing Your Habits Is More Important Than Any Hack

The FBI’s power-down tip comes alongside other key practices you should adopt right now:

1. Update your OS and apps immediately
   Mobile vulnerabilities are discovered weekly. Delaying updates leaves you open.
   
   
2. Audit your app permissions
   Ask yourself:
   Does this app really need my location?
   Why does it need mic access?
   At TecnetOne, we recommend a monthly permission audit.
   
   
3. Use a strong PIN—avoid visible patterns
   Simple codes and swipe patterns are easy to guess.
   
   
4. Be cautious with public Wi-Fi
   Attackers can intercept traffic and hijack sessions without your knowledge.
   
   
5. Ignore urgent messages or threats
   Most scams come via SMS, WhatsApp, or fake emails from “banks,” “governments,” or “services.”
   
6. Delete apps you don’t use
   Every extra app is a possible attack surface. Fewer apps = less risk.

You might also be interested in: FBI Seizes $2.4 Million in Bitcoin from Chaos Ransomware Operation

Is Powering Off Once a Week Enough?

No. But it’s a useful step to reduce real-world risks—especially memory-only threats.

Powering off won’t remove:

1. Spyware that’s already installed
   
   
2. Malicious apps with full permissions
   
   
3. Suspicious configuration profiles
   
   
4. Data already exfiltrated
   
   
5. Malware with persistence mechanisms

But it does help against opportunistic attacks and temporary exploits.

As the NSA puts it:

“Hackers hate reboots… but they really hate power-downs.”

Your Phone Is the Most Sensitive Device You Own—Treat It That Way

Your mobile is no longer just a gadget—it’s the key to your digital life. That’s why you can’t rely on quick reboots to stay safe.

At TecnetOne, we recommend making this a weekly routine:

1. Power off your device
   
   
2. Update everything
   
   
3. Review app permissions
   
   
4. Avoid suspicious messages and links
   
   
5. Use a strong PIN and avoid visible unlock patterns

Mobile security isn’t about one trick—it’s about consistent, small habits that make a big difference.