In iOS 26, a new setting has been added for handling "wired/physical accessories" connected to iPhones via cable. If left at the default setting, the device may be configured to automatically allow new accessory connections when unlocked, which can pose a risk depending on the location and who is connecting.

This article explains the problem, and how to change the settings to balance security, usability, and battery life, from the perspective of a real user. It also includes instructions for changing settings, recommendations for different use cases, and troubleshooting common issues. This is an up-to-date guide based on news reports and verification information.

Source:

• Forbes JAPAN "iOS 26 Default Setting Error": Strongly recommends reviewing initial settings. Forbes Japan
  
  

• Forbes (US): Explains that the default for "Wired Accessories" is "Automatically Allow When Unlocked" and recommends setting it to "Always Ask". Forbes
  
  

• Macworld: Clearly states the setting location and four options (Always Ask / Ask for New Accessories / Automatically Allow When Unlocked / Don't Allow). Macworld
  
  

• Apple Support Community: User reports on temporary solutions (reset all settings) and planned fixes for cases where changes cannot be made. 

Why the default setting for "Wired Accessories" is considered problematic

The new "Wired Accessories" setting in iOS 26 allows for fine-grained control over how physically connected devices like chargers, card readers, and USB audio devices are handled.

However, in some environments, the default setting is "automatically allow when unlocked," which creates a potential for unintended data access or command execution when connecting to an unfamiliar USB port or a third-party device.

"Juice jacking" attacks through charging ports have long been a concern, and iOS has evolved its defenses with timeouts and connection controls. However, if the "default behavior" isn't security-oriented, users can unknowingly make dangerous choices.

Forbes (Japan and US editions) and specialized media are successively raising awareness about the importance of checking and changing the initial settings. 

Examples of potential risks:

• Automatic permission is granted when connecting from an unspecified USB port (e.g., airports, cafes, event venues).
  
  

• Malicious devices disguised as legitimate accessories attempt to retrieve data or execute prompts.
  
  

• Personal devices or BYOD devices without MDM inadvertently connect during private use.
  
  

The first step in mitigation is to create a flow that "asks each time a connection is made," always requiring user confirmation.

Setting location and change procedure (completed in "just a few taps")

Procedure (iOS/iPadOS 26 or later)

1. Open the Settings app
   
   

2. Go to "Privacy & Security"
   
   

3. Tap "Wired Accessories" in the "Security" section at the bottom
   
   

4. Select from the following four options:
   
   

• Always Ask (Recommended)
  
  

• Ask for New Accessories
  
  

• Automatically Allow When Unlocked (may be default)
  
  

• Don't Allow (reduces convenience)
  
  

Macworld illustrates the procedure. When in doubt, "Always Ask" is the safest and most versatile choice.

Selection Guidelines (simple table)

How does the Wired Accessories setting affect "safety, comfort, and longevity"?

• Safety: User involvement with each connection acts as a final barrier to stop suspicious devices from executing.
  
  

• Comfort: Once approved, frequently used devices at home or in the office require less re-confirmation, reducing daily hassle.
  
  

• Longevity: While the direct impact on battery life is minimal, the habit of avoiding charging from suspicious ports can ultimately reduce the risk of malfunction.
  
  

Common stumbling blocks and solutions (cannot switch / item not appearing, etc.)

Some users report "cannot change settings / item is grayed out." The Apple Support Community shares cases where "Reset All Settings" (data is not erased) resolved the issue, and others where Apple stated that a fix would be included in a future update.

First, try isolating the issue by restarting → toggling Airplane Mode on/off → Reset All Settings in that order. If it still doesn't work, waiting for an update or contacting support is advisable.

Checklist (when in trouble, proceed from top to bottom)

• Is iOS the latest version?
  
  

• Is a configuration profile/MDM restricting it?
  
  

• Restart / Toggle Airplane Mode
  
  

• Reset All Settings (data retained)
  
  

• Share the symptom and reproduction steps with Apple Support
  
  

How to Differentiate: "Optimal Answers" for Each Scenario

1) Charging spots outdoors
For unspecified USB ports, use a dummy cable for charging only (data pins blocked) and set it to "Always Ask." Charging via a mobile battery is better.

2) Desk setup (dock, hub, audio interface)
Initially set to "Ask for New Accessories" to grant permission, then it will be smooth sailing. Stick with reliable manufacturers for hubs.

3) Family/children's devices
"Always Ask" + Screen Time for restrictions. This ensures connection confirmation even with shared chargers.

4) Corporate/BYOD
Centralize policy with MDM. "Always Ask" as a baseline, and listing approved peripherals reduces helpdesk workload.

"Summary Procedure" in 5 Minutes (What to do today)

1. Settings → Privacy & Security → Wired Accessories
   
   

2. Change to "Always Ask" (if in doubt, use this)
   
   

3. Only allow peripherals routinely used at home or work, on a case-by-case basis
   
   

4. Avoid public USBs / use a dummy cable
   
   

5. If issues arise, restart → reset settings, and check for updates 
   

PRODIG Reader Mini Guide: "First Things First" for Used/Older Models

Immediately after acquiring a used or older model, establish the foundation by verifying Activation Lock解除 → initializing → setting up with your Apple ID. Then, switch "Wired Accessories" to "Always Ask," and configure essential settings like Find My, two-factor authentication, and Optimized Battery Charging "on day one" for a dramatically improved sense of security. If you're unsure, go through the checklist step by step to complete it.

 [PRODIG's Used iPhone List is here]
https://prodig-shop.com/collections/iphone

Check for sales and bargains
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For short-term use or testing
[PRODIG Rental is here]
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Consultation for multiple units / corporate introduction
[PRODIG's Corporate Contact is here]
https://prodig-shop.com/pages/b2b-reception

FAQ

Q: Which setting is the safest?
A: "Always Ask." A permission prompt will appear every time you connect an unknown accessory, preventing unintended connections.

Q: I want to be safe without sacrificing convenience.
A: Only allow specific devices at home or work initially for everyday comfort. When out and about, a dummy cable + "Always Ask" is a practical solution.

Q: I can't change the settings / the item doesn't appear.
A: Restart → toggle Airplane Mode → Reset All Settings has solved this for some. Apple has also reported preparing a bug fix update.

Q: How dangerous are public USBs?
A: Technically, attacks via data lines are possible, so it's best to use a dummy cable for "charging only" or keep the setting at "Always Ask."

Finally

"Wired Accessories" is a switch to always require user confirmation for "physically connecting" devices. Since the default setting may not be security-oriented, take 3 taps today to change it to "Always Ask," and consciously allow only the peripherals you use daily. Even with used or older models, the first few minutes of setup can significantly improve the balance of security, affordability, and practicality. For device selection, upgrade consultations, or inquiries about multiple unit deployments, please contact PRODIG.