Turn off access to private information. Go to Settings > Privacy. You can see which apps and features have requested and been granted access to the following information:

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Contacts

Calendar

Reminders

Photos

Bluetooth Sharing

Microphone

Twitter

Facebook

You can turn off each app’s access to each category of information. Review the terms and privacy policy for each third-party app to understand how it uses the data it’s requesting.

Security

Security features help protect the information on your iPhone from being accessed by others.

Use a passcode with data protection

For better security, you can set a passcode that must be entered each time you turn on or wake up iPhone.

Set a passcode. Go to Settings > Touch ID & Passcode (iPhone 5s) or Settings > Passcode (other models), and set a 4-digit passcode.

Setting a passcode turns on data protection, using your passcode as a key to encrypt Mail messages and attachments stored on iPhone, using 256-bit AES encryption. (Other apps may also use data protection.)

Increase security. Turn off Simple Passcode and use a longer passcode. To enter a passcode that’s a combination of numbers and letters, you use the keyboard. If you prefer to unlock iPhone using the numeric keypad, create a passcode using numbers only.

Add fingerprints and set options for the Touch ID sensor. (iPhone 5s) Go to Settings > Touch ID & Passcode. See Touch ID sensor, below.

Allow access to features when iPhone is locked. Go to Settings > Touch ID & Passcode (iPhone 5s) or Settings > Passcode (other models). Optional features include:

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Voice Dial

Siri (if enabled, see Siri settings on page 43) Passbook (see Chapter 24, Passbook, on page 106)

Reply with Message (see When someone calls on page 45)

Allow access to Control Center when iPhone is locked. Go to Settings > Control Center. See Control Center on page 30.

Erase data after ten failed passcode attempts. Go to Settings > Touch ID & Passcode (iPhone 5s) or Settings > Passcode (other models), then tap Erase Data. After ten failed passcode attempts, all settings are reset, and all your information and media are erased by removing the encryption key to the data.

If you forget your passcode, you must restore the iPhone software. See Restore iPhone on page 157.

Chapter 3    Basics

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Apple MC536LL/A, MC319LL/A, MC918LL/A, MF263LL/A, ME493LL/A, ME344LL/A, ME556LL/A Security, Use a passcode with data protection
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MD271LL/A, MD276LL/A, MD635LL/A, MD655LL/A, ME493LL/A specifications

The Apple MC536LL/A, ME344LL/A, MD645LL/A, MD642C/A, and MC919LL/A are a series of devices that cater to diverse user needs with innovative technologies and robust features. Each model, defined by its specific code, offers a unique mix of specifications and functionalities.

The MC536LL/A, commonly recognized as the iPad 2, revolutionized the tablet market with its sleek design and powerful performance. It features a 9.7-inch LED-backlit display, allowing for vibrant visuals and exceptional clarity. Powered by the dual-core A5 chip, the iPad 2 delivers smooth multitasking and supports a wide range of applications, emphasizing user experience. With front and rear cameras, users can engage in FaceTime calls and capture high-quality photos.

The ME344LL/A corresponds to the MacBook Air 11-inch, an ultra-portable laptop that combines performance with portability. It’s lightweight and compact, making it ideal for on-the-go professionals. With an Intel Core i5 processor, it provides sufficient power for everyday tasks, while the solid-state drive (SSD) ensures faster boot times and quick application launches. The MacBook Air’s impressive battery life, coupled with a stunning display, makes it a go-to choice for students and business users alike.

The MD645LL/A represents the 13-inch MacBook Pro, known for its robust performance and Retina display. This model incorporates the Intel Core i5 processor, providing excellent speed and efficiency. The Retina display delivers stunning resolution, making it perfect for graphic design, photography, and video editing. Additionally, it features Thunderbolt 2 connectivity, enabling fast data transfers and wider compatibility with external devices.

The MD642C/A, identifiable as the MacBook Pro 15-inch, offers professionals powerful performance in a full-size package. This model also features a Retina display, coupled with higher-end graphics capabilities, making it exceptionally suitable for demanding creative tasks. With its ample storage and memory options, the MacBook Pro 15-inch stands out as a reliable workstation for video editing and software development.

Lastly, the MC919LL/A, which pertains to the iPhone 5, introduced a notable shift in smartphone technology. It has a 4-inch Retina display, offering enhanced resolution and color depth. The A6 chip inside enhances performance, ensuring fast processing speed for apps and multitasking. It also features an 8 MP iSight camera, allowing for high-quality photography and video recording. With the introduction of Lightning connectors and iOS compatibility, this model became a significant part of Apple's ecosystem.

Overall, these Apple products embody the brand's commitment to innovation, blending cutting-edge technology with user-friendly design. Each model is tailored to meet specific needs, making them popular choices across various consumer categories.
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